[go: up one dir, main page]

CN119119000A - Aromatic oligoamide folded body with protected aminoalkoxy side chain and preparation method and application thereof - Google Patents

Aromatic oligoamide folded body with protected aminoalkoxy side chain and preparation method and application thereof Download PDF

Info

Publication number
CN119119000A
CN119119000A CN202411245255.4A CN202411245255A CN119119000A CN 119119000 A CN119119000 A CN 119119000A CN 202411245255 A CN202411245255 A CN 202411245255A CN 119119000 A CN119119000 A CN 119119000A
Authority
CN
China
Prior art keywords
compound
aromatic
oligoamide
folded body
side chain
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202411245255.4A
Other languages
Chinese (zh)
Inventor
朱守哲
邢菲菲
王翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI UNIVERSITY
Original Assignee
SHANGHAI UNIVERSITY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI UNIVERSITY filed Critical SHANGHAI UNIVERSITY
Priority to CN202411245255.4A priority Critical patent/CN119119000A/en
Publication of CN119119000A publication Critical patent/CN119119000A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G83/00Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
    • C08G83/008Supramolecular polymers
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D215/00Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/16Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D215/48Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D401/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention relates to an aromatic oligoamide folding body with a protected amino alkoxy side chain, a preparation method and application thereof, wherein the aromatic oligoamide folding body has the following structure: r' is independently selected from the group consisting of linear alkyl, branched alkyl, and in each repeating unit Wherein m=0 to 2, andAt least 1 occurrence, R' is selected from the group consisting of straight chain alkyl, branched alkyl andN=1 to 8. Compared with the prior art, the aromatic oligoamide folding body prepared by the invention has the protected amino alkoxy side chain, has good amino reaction activity after removing the protecting group, can conveniently obtain a folding body sequence with further functionalization with various reagents so as to construct a supermolecule secondary assembly system, and is hopeful to reveal a biological macromolecule interaction mechanism.

Description

Aromatic oligoamide folding body with protected amino alkoxy side chain, and preparation method and application thereof
Technical Field
The invention relates to the technical field of aromatic oligoamide folding compounds, in particular to an aromatic oligoamide folding body with a protected amino alkoxy side chain, a preparation method and application thereof.
Background
The system which is obtained by constructing the same kind or different molecules by utilizing interaction forces such as hydrogen bond, cation-pi interaction, pi-pi stacking interaction and the like and exceeds the molecular level, namely the supermolecule system is a research hot spot with wide application prospect. The system is not only expected to simulate the functions of biological macromolecules and realize the slow release of medicines, but also provides a plurality of new ideas for the research of chemical basis.
The secondary assembly of the supermolecule system is more the leading edge of research and has more practical application possibility. By modifying the supramolecular system, interactions between a plurality of supramolecular systems can occur again (the strength of the interaction force is usually weaker than that of the first-order interaction force of the supramolecular system), the overall bonding strength of the secondary assembly is obviously increased, and a system with multiplied molecular weight is expected to be obtained, and the supramolecular polymer is an example.
The multi-level structure of proteins is an example of such secondary assembly, and the interaction between peptide bonds of polypeptides and hydrophobic interactions of amino acid residues can lead to secondary structures such as alpha-helices, while the interaction between these secondary structures (secondary assembly) can lead to tertiary and quaternary structures such as protein domains.
Unlike the folds of (quasi) polypeptide sequences obtained by aliphatic amino acid condensation, aromatic oligoamide folds benefit from the rigid structure of the aromatic parent nucleus and pi-pi stacking, not only show better conformational stability, but also enable the construction of unique supramolecular assemblies such as helical molecular capsules and folded pseudorotaxane.
Meanwhile, secondary interaction in a supermolecular system is constructed by means of multiple hydrogen bond interaction, metal multidentate coordination and the like, so that a huge supermolecular system is obtained, and the method becomes an important field for revealing biological macromolecule interaction in chemical biology and supermolecular chemistry.
However, the introduction of structural units capable of forming secondary assemblies into a supramolecular system often requires complex organic synthesis methods and expensive activating reagents, and the functionalization is achieved after activation of reactive sites with poor reactivity.
Disclosure of Invention
The invention aims to provide an aromatic oligoamide folding body with a protected amino alkoxy side chain, a preparation method and application thereof, wherein the protected amino alkoxy side chain of the aromatic oligoamide folding body can be subjected to deprotection under mild conditions, a folding body sequence with further functional groups can be conveniently obtained, and the folding body can be used for constructing a supermolecule secondary assembly system.
The aim of the invention can be achieved by the following technical scheme:
in one aspect, the present invention provides an aromatic oligoamide fold with protected aminoalkoxy side chains, the aromatic oligoamide fold having the structure:
r' is independently selected from the group consisting of linear alkyl, branched alkyl, and in each repeating unit (T-butoxycarbonyl protected aminoalkyl) wherein m=0 to 2, andAt least 1 occurrence;
R' is selected from the group consisting of linear alkyl branched alkyl (9-Fluorenylmethyl);
n=1 to 8.
In the present invention,The position of the cleavage of the group, i.e. the O atom is attached to the C atom on the left side of the structural formula of the aromatic oligoamide fold.
Preferably, said R' is independently selected from the group consisting of propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, neopentyl, isopentyl and in each repeating unitWherein m=0 to 2, andAt least 1 occurrence.
Preferably, said compound wherein R' is selected from the group consisting of propyl, isopropyl, butyl, isobutyl, tert-butyl and
Preferably, the aromatic oligoamide fold comprises a compound A1, A2 or A3, wherein A1 has the structural formula:
the structural formula of A2 is as follows:
the structural formula of A3 is as follows:
In a second aspect, the present invention provides a process for the preparation of an aromatic oligoamide fold with protected aminoalkoxy side chains as described above.
Preferably, when the aromatic oligoamide folded body is a compound A1, the preparation process comprises the following steps of taking a compound 7 as a starting material, firstly reacting with 1-chloro-N, N, 2-trimethylacrylamide in an organic solvent to obtain acyl chloride residual solid, and then reacting the acyl chloride residual solid with a mixture of diisopropylethylamine and a compound 8 to obtain the compound A1, wherein the reaction scheme is as follows:
wherein the structural formula of the compound 8 is
Preferably, when the aromatic oligoamide folded body is a compound A2, the preparation process comprises the following steps of taking a compound 3 as a raw material, firstly reacting with 1-chloro-N, N, 2-trimethylacrylamide in an organic solvent to obtain acyl chloride residual solid, and then reacting the acyl chloride residual solid with a mixture of diisopropylethylamine and a compound 9 to obtain the compound A2, wherein the reaction scheme is as follows:
Wherein the structural formula of the compound 3 is Compound 9 has the structural formula
Preferably, the specific preparation process of the compound 3 comprises the following steps of taking the compound 1 as a raw material, reacting with diisopropylethylamine and isopropyl chloroformate in an organic solvent to obtain a compound 2, and reacting the compound 2 with tetrahydrofuran and sodium hydroxide to obtain the compound 3, wherein the reaction scheme is as follows:
Preferably, when the aromatic oligoamide folded body is a compound A3, the preparation process comprises the following steps of taking a compound 6 as a raw material, firstly reacting with 1-chloro-N, N, 2-trimethylacrylamide in an organic solvent to obtain acyl chloride residual solid, and then reacting the acyl chloride residual solid with a mixture of diisopropylethylamine and a compound 10 to obtain the compound A3, wherein the reaction scheme is as follows:
Wherein the structural formula of the compound 6 is Compound 10 has the structural formula
Preferably, the specific preparation process of the compound 6 comprises the following steps of taking the compound 3 as a raw material, reacting with 1-chloro-N, N, 2-trimethylacrylamide in an organic solvent to obtain acyl chloride residual solid, reacting the acyl chloride residual solid with the compound 4 and diisopropylethylamine to obtain a compound 5, adding lithium hydroxide monohydrate into a tetrahydrofuran solution to react the compound 5 to obtain the compound 6, wherein the reaction scheme is as follows:
In a third aspect, the invention also provides the use of an aromatic oligoamide fold with protected aminoalkoxy side chains as described above for constructing a supramolecular secondary assembly system.
Preferably, the protected aminoalkoxy side chains carried by the aromatic oligoamide fold can be deprotected under mild conditions, the exposed amino groups are highly reactive, can be further functionalized and used to construct supramolecular secondary assembly systems.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention relates to an aromatic oligoamide folding compound with a protected amino alkoxy side chain, which can be further derivatized to obtain the aromatic oligoamide folding compound for a supermolecule secondary assembly.
(2) The invention designs an aromatic oligoamide folded compound, which is based on 8-fluoroquinoline and pyridine monomers, wherein a protected amino alkoxy side chain carried by the aromatic oligoamide folded compound can be subjected to deprotection under mild conditions, and an exposed amino group has high reactivity.
(3) The aromatic oligoamide folding compound designed by the invention has the advantages that the specific position in the oligomeric sequence is provided with the protected amino alkoxy side chain, the amino reaction activity after removing the protecting group is good, and the folding body sequence with further functionalization can be conveniently obtained with various reagents, so as to construct a supermolecule secondary assembly system.
(4) The preparation method of the aromatic oligoamide folded compound has the advantages of mild reaction conditions, stable reaction, easy operation and good product yield.
Drawings
FIG. 1 is a structural formula of an aromatic oligoamide fold of the present invention;
FIG. 2 shows the synthetic routes of compounds 1 to 6 of the present invention;
FIG. 3 shows the synthetic routes of the compounds A1, A2 and A3 of the present invention (wherein A is the synthetic route of the compound A1, B is the synthetic route of the compound A2, C is the synthetic route of the compound A3, and D is the structural formula of the compounds 8 and 10).
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
Unless specifically indicated otherwise, the reagents, methods, apparatus and devices employed in the present invention are those conventional in the art. Reagents and materials used in the following examples are commercially available unless otherwise specified.
The structural formula of the aromatic oligoamide folding body with the protected amino alkoxy side chain is shown in figure 1.
The preparation method of the invention can be further represented by the preparation process of the representative compound as follows:
Wherein compound 4 is a conventional compound.
Example 1 Synthesis of Compounds 1 to 6, the synthetic route is shown in FIG. 2
Synthesis of Compound 1
A solution of 8-fluoro-4-isopropoxy-7-nitroquinoline-2-carboxylic acid methyl ester (1.29 g,4.0 mmol) in 72mL of methanol/glacial acetic acid (v/v=1:1) was heated to reflux, reduced iron powder (0.692 g,12.4 mmol) was added in portions over 20 minutes, the reflux reaction was continued for 20 minutes, the yellow insoluble matter was filtered off, the filtrate was distilled off to remove the solvent, extracted with CH 2Cl2, the reddish brown insoluble matter was filtered off, washed with brine, and the organic phase was dried over Na 2SO4 and distilled off to remove the solvent to give compound 1 as a yellow solid (1.09 g, yield 95%).
1H NMR(400MHz,CDCl3):δ/ppm=7.86(dd,9.0/1.5Hz,1H),7.41(s,1H),7,10(dd,9.0/7.7Hz,1H),4.14(br,2H),4.06–4.00(m,5H),2.26(hept,6.7Hz,1H),1.12(d,6.7Hz,6H).
Synthesis of Compound 2
To a solution of compound 1 (500 mg,1.71 mmol) and diisopropylethylamine (1.11 g,8.55 mmol) in 15mL of anhydrous 1, 4-dioxane at 0 ℃ was added isopropyl chloroformate, heated to 80 ℃ and stirred overnight. The mixture was washed with water and extracted with methylene chloride, and purified by silica gel column chromatography (10% → 25% ethyl acetate/petroleum ether, v/v) to give compound 2 (460 mg, yield 71%).
1H NMR(600MHz,CDCl3):δ/ppm=8.44(br,1H),7.94(d,9.3Hz,1H),7.44(s,1H),7.05(s,1H),5.01(hept,6.3Hz,1H),3.99(s,3H),3.98(d,6.4Hz,2H),2.21(hept,6.7Hz,1H),1.28(d,6.2Hz,6H),1.06(d,6.7Hz,6H).
Synthesis of Compound 3
To 18mL of tetrahydrofuran solution containing compound 2 (400 mg,1.06 mmol) was added 2mL of aqueous solution of sodium hydroxide (106 mg,2.64 mmol), and after stirring at room temperature for 3 hours, the mixture was treated with 5% (w/w) aqueous citric acid solution and extracted with methylene chloride, and the organic phase was dried over anhydrous sodium sulfate and the solvent was distilled off to obtain compound 3 (395 mg, yield. About.100%) which was directly used in the next step after drying.
1H NMR(400MHz,CDCl3):δ/ppm=8.55(t,8.2Hz,1H),8.04(dd,9.4/1.8Hz,1H),7.57(s,1H),7.12(br,1H),5.09(hept,6.3Hz,1H),4.08(d,6.5Hz,2H),2.35–2.24(m,1H),1.37(d,6.2Hz,6H),1.14(d,6.7Hz,6H).
Synthesis of Compound 5
To a solution of compound 3 (223 mg,0.61 mmol) in 4mL of anhydrous dichloromethane was added 1-chloro-N, N, 2-trimethylpropenamine (246 mg,1.84 mmol), the solvent was removed under reduced pressure after stirring at room temperature for 2 hours, and dried under vacuum for 3 hours. The acid chloride residue was transferred with 5mL of anhydrous dichloromethane to a solution of compound 4 (201 mg,0.51 mmol) and diisopropylethylamine (262 mg,2.03 mmol) in 2mL of anhydrous dichloromethane and stirred at room temperature overnight. The mixture was washed with saturated aqueous sodium hydrogencarbonate solution and extracted with dichloromethane, and the organic phase was dried over anhydrous sodium sulfate, and the solvent was removed by rotary evaporation to give a crude product. Precipitation with dichloromethane and methanol afforded compound 5 as a white solid (330 mg, 87% yield).
1H NMR(600MHz,CDCl3):δ/ppm=11.0(br,1H),8.93(dd,9.2Hz,6.5Hz,1H),8.51(br,1H),8.06(d,9.2Hz,1H),8.04(d,9.2Hz,1H),7.69(s,1H),7.57(s,1H),7.16(s,1H),5.10(hept,6.1Hz,1H),4.78(br,1H),4.38(t,5.9Hz,2H),4.11(d,6.6Hz,2H),4.09(s,3H,COOCH3),3.45(q,7.7Hz,2H,),2.31(hept,1H),2.24–2.16(m,2H),1.45(s,9H),1.38(d,6.3Hz,6H),1.15(d,6.7Hz,6H).
Synthesis of Compound 6
To a solution of compound 5 (275 mg,0.37 mmol) in 7mL of tetrahydrofuran was added a solution of lithium hydroxide monohydrate (39 mg,0.93 mmol) in 7mL of water, which was stirred at room temperature for 4 hours, treated with 5% (w/w) aqueous citric acid and extracted with methylene chloride, and the organic phase was dried over anhydrous sodium sulfate, and the solvent was removed by rotary evaporation to give compound 6 as a pale yellow solid (245 mg, yield 90%), which was used directly in the next step after drying.
EXAMPLE 2 Synthesis of aromatic oligoamide folder Compound A1 with protected amino alkoxy side chain, the synthetic route is shown in FIG. 3A
(1) Synthesis of Compound 7
To 20mL of 1, 4-dioxane solution containing compound 4 (803 mg,2.04 mmol) was added 100mL of a 5% (w/w) aqueous solution of sodium bicarbonate. 20mL of a1, 4-dioxane solution of fluorenylmethyl chloroformate (792 mg,3.06 mmol) was added dropwise over 30 minutes at 0 ℃. Stirring was continued at 0 ℃ for 1 hour and then at room temperature overnight. Adding methyl chloroformate until the reaction is complete, treating with 1M hydrochloric acid and extracting with dichloromethane, and purifying the crude product by silica gel flash column chromatography (10% -38% ethyl acetate/petroleum ether, v/v) to obtain the ester compound. To 125mL of an anhydrous ethyl acetate solution of the ester compound (1.00 g,1.6 mmol) was added lithium iodide (0.650 g,4.9 mmol) as a solid, and the mixture was stirred overnight at 80℃and concentrated, treated with 5% aqueous solution of citric acid (w/w) and extracted with methylene chloride, dried by organic phase drying, and then sonicated with methanol to disperse the yellow insoluble matter, and the yellow insoluble matter was filtered off as a crude product, and purified by flash column chromatography on silica gel (methylene chloride→12% methanol/methylene chloride, v/v) to give compound 7 as a yellow solid (635 mg, yield 65%).
1H NMR(400MHz,DMSO-d6):δ/ppm=9.99(s,1H),7.90(t,8.8Hz,4H),7.80(d,7.5Hz,2H),7.52(s,1H),7.43(t,7.4Hz,2H),7.35(t,7.4Hz,2H),7.00(br,1H),4.49(d,6.9Hz,2H),4.32(q,7.0Hz,2H),3.19(q,6.6Hz,2H),1.99(t,6.4Hz,2H),1.35(s,9H).
(2) Synthesis of Compound 8, structural formula shown in FIG. 3D
To a solution of dimeric 8-fluoroquinoline carboxylic acid compound (0.227 g,0.83 mmol) in 10mL of anhydrous dichloromethane was added 1-chloro-N, N, 2-trimethylpropenamide (0.343g, 2.57 mmol), the solvent was removed under reduced pressure after stirring at room temperature for 3 hours, and dried under vacuum for 3 hours. The acid chloride residue was transferred to a solution of the amino compound containing the terpyridyl dichloro 8-fluoroquinolinamide (0.710 g,0.75 mmol) and diisopropylethylamine (0.41 g,3.15 mmol) in 5mL of anhydrous dichloromethane with 10mL of anhydrous dichloromethane and stirred overnight at room temperature. The solvent was removed by rotary evaporation to give the crude product. Purifying by silica gel flash column chromatography (10% -40% ethyl acetate/petroleum ether, v/v) to obtain tert-butoxycarbonyl protected amino compound. To a solution of the t-butoxycarbonyl-protected amino compound (0.250 g,0.16 mmol) in 1mL of anhydrous dichloromethane was added trifluoroacetic acid (0.50 mL), and after stirring at room temperature for 6 hours, the mixture was washed with saturated aqueous sodium hydrogencarbonate solution, and extracted with dichloromethane, and the organic phase was dried over anhydrous sodium sulfate and the solvent was removed by rotary evaporation to give compound 8 as a yellow solid (0.830 g, yield 70%).
1H NMR(600MHz,DMSO-d6):δ/ppm=11.48(s,1H),11.30(s,1H),11.03(s,1H),10.40(s,1H),10.08(s,1H),9.93(s,1H),9.25(s,1H),8.48(s,1H),8.10–6.53(m,21H),4.36–4.13(m,6H),4.03(q,7.2Hz,2H),2.40–2.31(m,4H),1.41–1.20(m,33H),0.68(s,9H).
(3) Synthesis of Compound A1
To a solution of compound 7 (186 mg,0.31 mmol) in 3mL of anhydrous dichloromethane was added 1-chloro-N, N, 2-trimethylpropenamine (134 mg,1.00 mmol), the solvent was removed under reduced pressure after stirring at room temperature for 3 hours, and dried under vacuum for 3 hours. The acid chloride residue was transferred to a mixture containing compound 8 (380 mg,0.25 mmol) and diisopropylethylamine (143 mg,1.11 mmol) with 4.5mL of anhydrous dichloromethane and stirred at room temperature overnight. The crude product was purified by flash column chromatography on silica gel (10% → 40% ethyl acetate/petroleum ether, v/v) and precipitated with dichloromethane and methanol to give compound A1 as a white solid (325 mg, yield 61%).
1H NMR(400MHz,DMSO-d6):δ/ppm=11.56(s,1H),11.27(s,1H),10.66(s,1H),10.34(s,1H),10.14(s,1H),10.03–9.90(m,2H),8.84(s,1H),8.40–8.24(m,2H),8.24–8.08(m,1H),7.94(d,7.6Hz,1H),7.85–7.64(m,5H),7.62–7.34(m,9H),7.34–6.96(m,13H),6.92–6.82(m,2H),6.80–6.63(m,3H),4.45–3.65(m,14H),2.42–2.30(m,4H),2.27–2.00(m,3H),1.48(s,9H),1.40–1.27(m,20H),1.21–1.13(m,6H),0.50(s,9H).
EXAMPLE 3 Synthesis of aromatic oligoamide folder Compound A2 with protected amino alkoxy side chain, the synthetic route is shown in FIG. 3B
(1) Synthesis of Compound 9
To a solution of A1 (100 mg,0.05 mmol) in 0.7mL of anhydrous dichloromethane was added 0.10mL of tris (2-aminoethylamine) (0.65 mmol), and after stirring at room temperature for 30 minutes, the mixture was washed with saturated aqueous sodium bicarbonate and extracted with ethyl acetate, and compound 9 (86 mg, yield 93%) was purified by flash column chromatography on silica gel (10%. Fwdarw.55% ethyl acetate/petroleum ether, v/v) and used directly for the next step and condensation of acid chloride.
(2) Synthesis of Compound A2
To a solution of compound 3 (56 mg,0.15 mmol) in 1mL of anhydrous dichloromethane was added 1-chloro-N, 2-trimethylpropenamine (61 mg,0.46 mmol), and after stirring at room temperature for 3 hours, the solvent was removed under reduced pressure and dried under vacuum for 3 hours. The acid chloride residue was transferred to a mixture containing compound 9 (140 mg, 76. Mu. Mol) and diisopropylethylamine (39 mg,0.30 mmol) with 1.5mL of anhydrous dichloromethane and stirred at room temperature overnight. The crude product was purified by flash column chromatography on silica gel (dichloromethane→25% ethyl acetate/dichloromethane, v/v) to give compound A2 as a white solid (145 mg, 87% yield).
1H NMR(400MHz,DMSO-d6):δ/ppm=11.68(s,1H),11.24(s,1H),10.37(s,1H),10.25(s,1H),10.15(s,2H),9.96–9.77(m,3H),8.82(s,1H),8.51–8.28(m,2H),8.07–7.95(m,2H),7.87–7.76(m,2H),7.75–7.64(m,2H),7.61–7.36(m,4H),7.33–7.10(m,8H),7.08–6.58(m,9H),4.49–4.25(m,4H),4.23–4.09(m,3H),4.07–3.92(m,3H),3.90–3.79(m,2H),2.32–2.09(m,7H),1.52(s,9H),1.45–1.29(m,15H),1.28–1.15(m,15H),0.87(d,6.2Hz,3H),0.54(d,6.3Hz,3H),0.34(s,9H).
EXAMPLE 4 Synthesis of aromatic oligoamide folder Compound A3 with protected amino alkoxy side chain, the synthetic route is shown in FIG. 3C
(1) Synthesis of Compound 10, having a structural formula shown in FIG. 3D
To a solution of dimeric 8-fluoroquinoline carboxylic acid compound (0.128 g,0.20 mmol) in 2mL of anhydrous dichloromethane was added 1-chloro-N, N, 2-trimethylpropenamide (0.091 g,0.68 mmol), the solvent was removed under reduced pressure after stirring at room temperature for 3 hours, and dried under vacuum for 3 hours. The acid chloride residue was transferred to a solution of compound 8 (0.250 g,0.17 mmol) and diisopropylethylamine (0.094 g,0.73 mmol) in 1mL of anhydrous dichloromethane and stirred at room temperature overnight. The solvent was removed by rotary evaporation to give the crude product. Purifying by silica gel flash column chromatography (10% -35% ethyl acetate/petroleum ether, v/v) to obtain tert-butoxycarbonyl protected amino compound. To a solution of the t-butoxycarbonyl-protected amino compound (0.250 g,0.12 mmol) in 1mL of anhydrous dichloromethane was added trifluoroacetic acid (0.45 mL), and after stirring at room temperature for 5 hours, the mixture was washed with saturated aqueous sodium bicarbonate solution, extracted with dichloromethane, and the solvent was removed by rotary evaporation to give the crude product. Purification by flash column chromatography on silica gel (10% -35% ethyl acetate/petroleum ether, v/v) afforded compound 8 as a yellow solid (0.830 g, 70%).
1H NMR(400MHz,DMSO-d6):δ/ppm=11.69(s,1H),11.14(s,1H),10.47(s,1H),10.34(s,1H),10.10(s,2H),9.96(s,1H),9.92(s,1H),9.84(s,1H),8.77(s,1H),8.32(t,7.6Hz,1H),8.09–7.87(m,3H),7.85(d,7.5Hz,2H),7.78–7.14(m,13H),7.08–6.56(m,8H),4.37–3.81(m,12H),2.41–2.20(m,6H),1.43–1.15(m,36H),1.03(s,9H),0.38(s,9H).
(2) Synthesis of Compound A3
To a solution of compound 6 (125 mg,0.172 mmol) in 4.5mL of anhydrous dichloromethane was added 1-chloro-N, N, 2-trimethylpropenamine (61 mg,0.46 mmol), the solvent was removed under reduced pressure after stirring at room temperature for 3 hours, and dried under vacuum for 3 hours. The acid chloride residue was transferred to a mixture containing compound 10 (220 mg,0.115 mmol) and diisopropylethylamine (60 mg,0.46 mmol) with 7mL of anhydrous dichloromethane and stirred at room temperature overnight. The mixture was washed with saturated aqueous sodium hydrogencarbonate solution and extracted with methylene chloride, and purified by silica gel flash column chromatography (20% → 50% ethyl acetate/petroleum ether, v/v) and precipitated with methylene chloride and methanol to give compound A3 as a white solid (225 mg, yield 75%).
1H NMR(600MHz,CCl4/DMSO-d6=1:5,v/v):δ/ppm=11.45(s,1H),11.28–11.01(m,1H),10.93–10.55(m,1H),10.38–10.18(m,1H),10.15–9.47(m,5H),8.69(s,1H),8.14–6.41(m,32H),4.42–3.92(m,13H),3.47–3.31(m,2H),2.45–2.09(m,9H),1.53(s,9H),1.40–1.15(m,42H),0.85(br,3H),0.68–0.31(m,9H).
Example 5:
The protected side chain amino groups can be deprotected in a mild environment, and the exposed highly reactive amino groups can be reacted by simple steps to give further functionalized oligomeric sequences for use in constructing secondary assembled structures, examples of which are given below for deprotection, functionalization and secondary assembled supramolecular polymerization.
6-Tert-Butylisocytosine (100 mg,0.60 mmol) and N, N' -carbonyldiimidazole (146 mg,0.90 mmol) were dissolved in 2.5mL of 1, 4-dioxane and stirred at 60℃for 2 hours. The white precipitate was collected by filtration, thoroughly washed with acetone and dried in the shade to give an activated isocytosine compound (110 mg, yield 70%).
1H NMR(600MHz,CDCl3):δ/ppm=12.63(br,1H,NHC=O),12.49(br,1H,Ar-NH),8.71(s,1H,N-CH=N),7.60(s,C(=O)-N-CH=CH-N),7.14(s,C(=O)-N-CH=CH-N),5.93(s,1H,C(=O)-CH=C),1.39(s,9H,tBu).
To 2.5mL of anhydrous 1, 4-dioxane solution containing Compound A3 (175 mg,0.065 mmol) was added 3.0mL of 1, 4-dioxane solution of hydrogen chloride, and the solvent was removed by rotary evaporation after stirring at room temperature for 4 hours to give the corresponding amine. After the amine was dissolved in 3.5mL of anhydrous dichloromethane, anhydrous triethylamine (29 mg,0.288 mmol) and activated isocytosine compound (26 mg,0.100 mmol) were added. After the mixture was stirred overnight at 35 ℃, washed with 1.0M aqueous hydrogen chloride, saturated aqueous sodium bicarbonate and brine, extracted with dichloromethane, purified by flash column chromatography on silica gel (0.5% → 3.0% methanol/dichloromethane, v/v) and precipitated with methanol/dichloromethane to give compound A4 as a white solid (135 mg, yield 75%).
1H NMR(600MHz,CCl4/DMSO-d6=1:5,v/v):δ/ppm=11.66–9.45(m,9H),8.69(s,1H),8.21–6.33(m,26H),5.86(s,1H),4.55–3.92(m,12H),3.58(s,1H),2.43–2.13(m,7H),1.41–1.08(m,42H),0.85(br,3H),0.68–0.32(m,9H).
The nuclear magnetic resonance diffusion sequence spectrum of the 20mM deuterated chloroform solution of the compound A4 shows that the compound A4 can form a supermolecular polymer with the molecular weight of 100000 through the multiple hydrogen bond interaction of the allopyrimidinone unit, and the structural formula of the compound A4 is shown as follows.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.

Claims (10)

1.一种带有受保护的氨基烷氧基侧链的芳香寡聚酰胺折叠体,其特征在于,所述芳香寡聚酰胺折叠体具有以下结构:1. An aromatic oligomer amide folded body with a protected aminoalkoxy side chain, characterized in that the aromatic oligomer amide folded body has the following structure: R'在每个重复单元中独立地选自直链烷基、支链烷基和其中,m=0至2,且出现至少1次;R' in each repeating unit is independently selected from linear alkyl, branched alkyl and Where m = 0 to 2, and Appears at least once; R”选自直链烷基、支链烷基和 R" is selected from the group consisting of linear alkyl, branched alkyl and n=1至8。n=1 to 8. 2.根据权利要求1所述的一种带有受保护的氨基烷氧基侧链的芳香寡聚酰胺折叠体,其特征在于,所述R'在每个重复单元中独立地选自丙基、异丙基、丁基、异丁基、叔丁基、戊基、新戊基、异戊基和其中,m=0至2,且出现至少1次。2. The aromatic oligoamide folded body with protected aminoalkoxy side chains according to claim 1, characterized in that the R' in each repeating unit is independently selected from propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, neopentyl, isopentyl and Where m = 0 to 2, and Occurs at least once. 3.根据权利要求1所述的一种带有受保护的氨基烷氧基侧链的芳香寡聚酰胺折叠体,其特征在于,所述其中R”选自丙基、异丙基、丁基、异丁基、叔丁基和3. The aromatic oligoamide folded body with protected aminoalkoxy side chains according to claim 1, characterized in that R" is selected from propyl, isopropyl, butyl, isobutyl, tert-butyl and 4.根据权利要求1所述的一种带有受保护的氨基烷氧基侧链的芳香寡聚酰胺折叠体,其特征在于,所述芳香寡聚酰胺折叠体包括化合物A1、A2或A3,其中A1的结构式为:4. The aromatic oligoamide foldable with a protected aminoalkoxy side chain according to claim 1, characterized in that the aromatic oligoamide foldable comprises compound A1, A2 or A3, wherein the structural formula of A1 is: A2的结构式为:The structural formula of A2 is: A3的结构式为:The structural formula of A3 is: 5.一种如权利要求1~4任一项所述的带有受保护的氨基烷氧基侧链的芳香寡聚酰胺折叠体的制备方法,其特征在于,所述芳香寡聚酰胺折叠体为化合物A1时,制备过程包括以下步骤:以化合物7为起始原料,在有机溶剂中,先与1-氯-N,N,2-三甲基丙烯胺反应,得到酰氯残固,随后将所述酰氯残固与二异丙基乙基胺和化合物8的混合物反应,得到化合物A1,反应流程如下所示:5. A method for preparing an aromatic oligoamide folded body with a protected aminoalkoxy side chain as claimed in any one of claims 1 to 4, characterized in that when the aromatic oligoamide folded body is compound A1, the preparation process comprises the following steps: using compound 7 as a starting material, first reacting it with 1-chloro-N,N,2-trimethylpropyleneamine in an organic solvent to obtain an acyl chloride residue, and then reacting the acyl chloride residue with a mixture of diisopropylethylamine and compound 8 to obtain compound A1, and the reaction process is as follows: 其中化合物8的结构式为 The structural formula of compound 8 is 6.一种如权利要求1~4任一项所述的带有受保护的氨基烷氧基侧链的芳香寡聚酰胺折叠体的制备方法,其特征在于,所述芳香寡聚酰胺折叠体为化合物A2时,制备过程包括以下步骤:以化合物3为原料,在有机溶剂中,先与1-氯-N,N,2-三甲基丙烯胺反应,得到酰氯残固,随后将所述酰氯残固与二异丙基乙基胺和化合物9的混合物反应,得到化合物A2,反应流程如下所示:6. A method for preparing an aromatic oligoamide folded body with a protected aminoalkoxy side chain as claimed in any one of claims 1 to 4, characterized in that when the aromatic oligoamide folded body is compound A2, the preparation process comprises the following steps: using compound 3 as a raw material, first reacting it with 1-chloro-N,N,2-trimethylpropyleneamine in an organic solvent to obtain an acyl chloride residue, and then reacting the acyl chloride residue with a mixture of diisopropylethylamine and compound 9 to obtain compound A2, and the reaction process is as follows: 其中化合物3的结构式为化合物9的结构式为The structural formula of compound 3 is The structural formula of compound 9 is 7.根据权利要求6所述的带有受保护的氨基烷氧基侧链的芳香寡聚酰胺折叠体的制备方法,其特征在于,化合物3的具体制备过程如下:以化合物1为原料,在有机溶剂中,与二异丙基乙基胺和氯甲酸异丙酯反应,得到化合物2,化合物2与四氢呋喃和氢氧化钠反应,得到化合物3,反应流程如下:7. The method for preparing an aromatic oligoamide folded body with a protected aminoalkoxy side chain according to claim 6, characterized in that the specific preparation process of compound 3 is as follows: compound 1 is used as a raw material, reacted with diisopropylethylamine and isopropyl chloroformate in an organic solvent to obtain compound 2, and compound 2 is reacted with tetrahydrofuran and sodium hydroxide to obtain compound 3, and the reaction process is as follows: 8.一种如权利要求1~4任一项所述的带有受保护的氨基烷氧基侧链的芳香寡聚酰胺折叠体的制备方法,其特征在于,所述芳香寡聚酰胺折叠体为化合物A3时,制备过程包括以下步骤:以化合物6为原料,在有机溶剂中,先与1-氯-N,N,2-三甲基丙烯胺反应,得到酰氯残固,随后将所述酰氯残固与二异丙基乙基胺和化合物10的混合物反应,得到化合物A3,反应流程如下所示:8. A method for preparing an aromatic oligoamide folded body with a protected aminoalkoxy side chain as claimed in any one of claims 1 to 4, characterized in that when the aromatic oligoamide folded body is compound A3, the preparation process comprises the following steps: using compound 6 as a raw material, first reacting it with 1-chloro-N,N,2-trimethylpropyleneamine in an organic solvent to obtain an acyl chloride residue, and then reacting the acyl chloride residue with a mixture of diisopropylethylamine and compound 10 to obtain compound A3. The reaction process is shown below: 其中化合物6的结构式为化合物10的结构式为The structural formula of compound 6 is The structural formula of compound 10 is 9.根据权利要求8所述的带有受保护的氨基烷氧基侧链的芳香寡聚酰胺折叠体的制备方法,其特征在于,化合物6的具体制备过程如下:以化合物3为原料,在有机溶剂中,与1-氯-N,N,2-三甲基丙烯胺反应,得到酰氯残固,将所述酰氯残固与化合物4和二异丙基乙基胺反应,得到化合物5,将化合物5与四氢呋喃溶液中加入氢氧化锂一水合物反应,得到化合物6,反应流程如下:9. The method for preparing an aromatic oligoamide folded body with a protected aminoalkoxy side chain according to claim 8, characterized in that the specific preparation process of compound 6 is as follows: compound 3 is used as a raw material, reacted with 1-chloro-N,N,2-trimethylpropyleneamine in an organic solvent to obtain an acyl chloride residue, the acyl chloride residue is reacted with compound 4 and diisopropylethylamine to obtain compound 5, and compound 5 is reacted with lithium hydroxide monohydrate added to a tetrahydrofuran solution to obtain compound 6. The reaction process is as follows: 10.一种如权利要求1~4任一项所述的带有受保护的氨基烷氧基侧链的芳香寡聚酰胺折叠体的应用,其特征在于,将所述芳香寡聚酰胺折叠体用于构建超分子次级组装体系。10. Use of an aromatic oligoamide foldamer with protected aminoalkoxy side chains as claimed in any one of claims 1 to 4, characterized in that the aromatic oligoamide foldamer is used to construct a supramolecular secondary assembly system.
CN202411245255.4A 2024-09-06 2024-09-06 Aromatic oligoamide folded body with protected aminoalkoxy side chain and preparation method and application thereof Pending CN119119000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202411245255.4A CN119119000A (en) 2024-09-06 2024-09-06 Aromatic oligoamide folded body with protected aminoalkoxy side chain and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202411245255.4A CN119119000A (en) 2024-09-06 2024-09-06 Aromatic oligoamide folded body with protected aminoalkoxy side chain and preparation method and application thereof

Publications (1)

Publication Number Publication Date
CN119119000A true CN119119000A (en) 2024-12-13

Family

ID=93749074

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202411245255.4A Pending CN119119000A (en) 2024-09-06 2024-09-06 Aromatic oligoamide folded body with protected aminoalkoxy side chain and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN119119000A (en)

Similar Documents

Publication Publication Date Title
JP4463454B2 (en) Method for synthesizing a substantially monodispersed mixture of polymers having polyethylene glycol moieties
JP7296396B2 (en) Amanitin-antibody conjugate
CN114409890A (en) A kind of amino functionalized polyethylene glycol derivative and preparation method thereof
JPWO2019189867A1 (en) Applications for drug delivery of bisiminobiotin compounds
JP2008530289A (en) Process for the preparation of polyethylene glycols functionalized with alkoxyamines
CN109824565B (en) Light-responsive multifunctional chemical cross-linking agent and preparation method and application thereof
CN108558692A (en) A kind of preparation method of amides compound
CN119119000A (en) Aromatic oligoamide folded body with protected aminoalkoxy side chain and preparation method and application thereof
EP3412700A1 (en) Compounds
CN103012176A (en) Method for preparing long-chain alkyl 4-carboxyl anionic surfactant
WO2023033017A1 (en) Method for producing ganirelix or salt thereof
CN119137111A (en) Lipophilic reagent compounds for liquid phase synthesis of biomolecules
JP2003516398A (en) Macrocyclic compounds and their use
JP7522726B2 (en) Method for producing pyrrole-imidazole (poly)amide
CN110437066A (en) Synthetic method of carboxylic ester compound
CN113264883B (en) Method for rapidly synthesizing phenanthridine compounds
JP2655907B2 (en) Separating agent
CN115636848B (en) Method for synthesizing phosphorylcholine compound by one-pot method
CN110172062B (en) Synthesis method of monofluoro spiro compound and intermediate thereof
JP6202431B2 (en) Cage-type silsesquioxane derivatives
AU2022424485A1 (en) Method for producing oligonucleic acid compound
CN111375068B (en) Preparation method of polyethylene glycol polypeptide medicine
CN107586265B (en) Environment-friendly orthogonal protection diamino diacid compound, preparation method and application thereof
CN101260135A (en) A kind of synthetic method of higher fatty acid zidovudine ester
CN117964685A (en) Antibody drug conjugate, intermediate thereof, preparation method and application

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination