CN107789324B - 一种注射用德拉沙星葡甲胺及其制备方法 - Google Patents
一种注射用德拉沙星葡甲胺及其制备方法 Download PDFInfo
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- 238000002347 injection Methods 0.000 title claims abstract description 19
- 239000007924 injection Substances 0.000 title claims abstract description 19
- MBBZMMPHUWSWHV-BDVNFPICSA-N N-methylglucamine Chemical compound CNC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO MBBZMMPHUWSWHV-BDVNFPICSA-N 0.000 title claims description 16
- 229960003194 meglumine Drugs 0.000 title claims description 16
- 229950006412 delafloxacin Drugs 0.000 claims abstract description 55
- AHJGUEMIZPMAMR-WZTVWXICSA-N 1-(6-amino-3,5-difluoropyridin-2-yl)-8-chloro-6-fluoro-7-(3-hydroxyazetidin-1-yl)-4-oxoquinoline-3-carboxylic acid;(2r,3r,4r,5s)-6-(methylamino)hexane-1,2,3,4,5-pentol Chemical compound CNC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.C1=C(F)C(N)=NC(N2C3=C(Cl)C(N4CC(O)C4)=C(F)C=C3C(=O)C(C(O)=O)=C2)=C1F AHJGUEMIZPMAMR-WZTVWXICSA-N 0.000 claims abstract description 47
- SESFRYSPDFLNCH-UHFFFAOYSA-N benzyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCC1=CC=CC=C1 SESFRYSPDFLNCH-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229940097346 sulfobutylether-beta-cyclodextrin Drugs 0.000 claims abstract description 23
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
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- XUBOMFCQGDBHNK-JTQLQIEISA-N (S)-gatifloxacin Chemical compound FC1=CC(C(C(C(O)=O)=CN2C3CC3)=O)=C2C(OC)=C1N1CCN[C@@H](C)C1 XUBOMFCQGDBHNK-JTQLQIEISA-N 0.000 description 1
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- GSDSWSVVBLHKDQ-JTQLQIEISA-N Levofloxacin Chemical compound C([C@@H](N1C2=C(C(C(C(O)=O)=C1)=O)C=C1F)C)OC2=C1N1CCN(C)CC1 GSDSWSVVBLHKDQ-JTQLQIEISA-N 0.000 description 1
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- 229960003405 ciprofloxacin Drugs 0.000 description 1
- DOAKLVKFURWEDJ-QCMAZARJSA-N daptomycin Chemical compound C([C@H]1C(=O)O[C@H](C)[C@@H](C(NCC(=O)N[C@@H](CCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@H](C)C(=O)N[C@@H](CC(O)=O)C(=O)NCC(=O)N[C@H](CO)C(=O)N[C@H](C(=O)N1)[C@H](C)CC(O)=O)=O)NC(=O)[C@H](CC(O)=O)NC(=O)[C@@H](CC(N)=O)NC(=O)[C@H](CC=1C2=CC=CC=C2NC=1)NC(=O)CCCCCCCCC)C(=O)C1=CC=CC=C1N DOAKLVKFURWEDJ-QCMAZARJSA-N 0.000 description 1
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- LISFMEBWQUVKPJ-UHFFFAOYSA-N quinolin-2-ol Chemical compound C1=CC=C2NC(=O)C=CC2=C1 LISFMEBWQUVKPJ-UHFFFAOYSA-N 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- 210000003462 vein Anatomy 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/47—Quinolines; Isoquinolines
- A61K31/4709—Non-condensed quinolines and containing further heterocyclic rings
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Abstract
本发明属医药技术领域,具体涉及注射用德拉沙星葡甲胺及其制备方法。本发明提供的注射用德拉沙星葡甲胺:主要由德拉沙星葡甲胺、葡甲胺、磺丁基醚‑β‑环糊精、苯甲酸苄酯、pH调节剂和注射用水组成。本发明技术方案灌装量小,方便生产和运输,同时降低了临床使用中患者的医疗成本;本发明降低了磺丁基醚‑β‑环糊精的使用量,因此进一步提高了产品在临床使用中的安全性。
Description
技术领域
本发明属于医药技术领域,具体涉及注射用德拉沙星葡甲胺及其制备方法。
背景技术
德拉沙星(英文名:delafloxacin)是由Rib-X制药公司研制开发的新一代广谱氟喹诺酮类抗菌药物,针对150例cSSSIs住院患者进行的双盲II期临床研究结果显示:每12小时静脉注射本品300mg、450mg,连用5-14天,对cSSSIs患者的治愈率分别达97.2%和92.5%,替加环素(tigecycine)组为91.2%。本品对耐喹诺酮类药物MRSA菌的抗菌活性至少是左氧氟沙星、环丙沙星、加替沙星、莫西沙星的32倍(本品的MIC90≤0.5ug/mL,上述其他药物MIC90均大于16ug/mL);而对MRSA的抗菌活性是达托霉素的2倍。
中国专利公布号CN 103705942 A和公布号CN 104958296 A公布了注射用德拉沙星葡甲胺的抗微生物组合物,其均利用磺丁基醚-β-环糊精的包合技术提高了德拉沙星在水溶液中的溶解度,使其在水中的溶解度达到25mg/ml,由于在临床中其每12小时静脉注射本品300mg、450mg,同时为了保持制剂使用中的充足量,注射用德拉沙星葡甲胺制剂的规格500mg为优选,其装量为20ml,这样就需要60ml以上的容器来灌装,这样即增加了临床使用中患者的治疗成本,又给生产和运输带来了极大的不便。
因此,如果能够提高德拉沙星葡甲胺在水溶液中的溶解度,降低装量,使用小规格的容器来灌装,可以有效的提高注射用德拉沙星葡甲胺的单位生产数量,加快生产速度,解决了由于包装容器过大带来的生产、运输和使用中的不便。
发明内容
针对上述出现的问题,本发明提供了一种注射用德拉沙星葡甲胺:主要由活性成分德拉沙星葡甲胺、葡甲胺、磺丁基醚-β-环糊精、苯甲酸苄酯、pH调节剂和注射用水组成。
所述德拉沙星葡甲胺的浓度范围为50mg/ml~100mg/ml,优选为75mg/ml;
所述德拉沙星葡甲胺与磺丁基醚-β-环糊精的质量比为范围为1:1.2~1:1.6,优选为1:1.4;
所述述苯甲酸苄酯与磺丁基醚-β-环糊精的质量比为范围为1:3~1:2,优选为1:2.5;
所述的德拉沙星葡甲胺(以德拉沙星计)和葡甲胺的质量比为1:0.1~1:0.5,优选为1:0.15;
所述的pH调节剂为盐酸、磷酸、乙酸或柠檬酸中的一种或几种的混合溶液,优选为盐酸;
所述的pH范围为7.0~8.0,优选为7.5。
本发明进一步提供了上述注射用德拉沙星葡甲胺的制备方法,主要包括以下步骤:称取处方量的苯甲酸苄酯,加入预冷至室温适量的注射用水中,搅拌均匀,加入处方量的磺丁基醚-β-环糊精,升温搅拌均匀,加入处方量德拉沙星葡甲胺、葡甲胺,保温搅拌至完全溶解,调节pH值,定容至总量,搅拌均匀;过滤,灌装,冷冻干燥,目检即得成品。
本发明所述的上述目的具有以下优点:
1.本发明灌装量小,使用小规格的西林瓶灌装,方便生产和运输,同时降低了临床使用中患者的医疗成本;
2.由于磺丁基醚-β-环糊精具有一定的溶血性和致癌性,而且可能存在未知的更严重的毒副作用,本发明降低了磺丁基醚-β-环糊精的使用量,因此进一步提高了产品在临床使用中的安全性。
具体实施方式
实施例1:
处方
制备工艺
称取处方量的苯甲酸苄酯,加入适量注射用水中,搅拌均匀,加入处方量的磺丁基醚-β-环糊精,升温搅拌均匀,加入处方量德拉沙星葡甲胺、葡甲胺,保温搅拌15min即可至完全溶解,用稀盐酸或稀氢氧化钠溶液调节pH值至7.0,定容至总量,搅拌均匀;过滤,灌装,冷冻干燥,目检即得成品。
实施例2:
处方
制备方法(同实施例1)
实施例3:
处方
制备方法(同实施例1)
实施例4:
处方
制备工艺(同实施例1)
实施例5:
处方
制备方法(同实施例1)
实施例6:
处方
制备方法(同实施例1)
实施例7:
处方
制备方法(同实施例1)
对比实施例1:
处方
制备方法
称取处方量的磺丁基醚-β-环糊精,加入适量注射用水中,搅拌溶解,加入处方量德拉沙星葡甲胺、葡甲胺,搅拌至完全溶解,用稀盐酸或稀葡甲胺溶液调节pH值至9.0,定容至总量,搅拌均匀;过滤,灌装,冷冻干燥,目检即得成品。
对比实施例2:
处方
制备方法称取处方量的苯甲酸苄酯,加入注射用水中,搅拌至溶解,升温搅拌均匀,加入处方量德拉沙星葡甲胺、葡甲胺,保温搅拌60min,德拉沙星葡甲胺未完全溶解,用稀盐酸或稀氢氧化钠溶液调节pH值至7.5,定容至总量,保温搅拌60min,德拉沙星葡甲胺仍未完全溶解。
对比实施例3:
处方
制备方法称取处方量的苯甲酸苄酯45.00g,加入预冷至室温的600ml注射用水中,搅拌至溶解,升温搅拌15min,加入处方量德拉沙星葡甲胺75.00g、葡甲胺11.25g,保温搅拌60min,德拉沙星葡甲胺未完全溶解,用稀盐酸或稀氢氧化钠溶液调节pH值至9.0,定容至总量,保温搅拌60min,德拉沙星葡甲胺仍未完全溶解。
对比实施例4:
处方
制备方法称取处方量的磺丁基醚-β-环糊精105.00g,加入预冷至室温的600ml注射用水中,搅拌至溶解,升温搅拌15min,加入处方量德拉沙星葡甲胺75.00g、葡甲胺11.25g,保温搅拌60min,德拉沙星葡甲胺未完全溶解,用稀盐酸或稀氢氧化钠溶液调节pH值至7.5,定容至总量,保温搅拌60min,德拉沙星葡甲胺仍未完全溶解。
对比实施例5:
处方
制备方法称取处方量的磺丁基醚-β-环糊精105.00g,加入预冷至室温的600ml注射用水中,搅拌至溶解,升温搅拌15min,加入处方量德拉沙星葡甲胺75.00g、葡甲胺11.25g,保温搅拌60min,德拉沙星葡甲胺未完全溶解,用稀盐酸或稀氢氧化钠溶液调节pH值至9.0,定容至总量,保温搅拌60min,德拉沙星葡甲胺仍未完全溶解。
对比实施例6:
处方
制备方法称取处方量的苯甲酸苄酯,加入适量注射用水中,搅拌至溶解,升温搅拌15min,加入处方量德拉沙星葡甲胺,保温搅拌60min,德拉沙星葡甲胺未完全溶解,用稀盐酸或稀氢氧化钠溶液调节pH值,定容至总量,保温搅拌60min,德拉沙星葡甲胺仍未完全溶解。
验证实施例
影响因素试验
将本发明实施例1~7与对比实施例1-6所得成品制剂置于25℃、RH60%的恒温恒湿箱中,分别于第0、12、24个月取样考察复溶前后外观性状、pH、水分、有关物质与含量的变化,试验结果见表1
表1影响因素试验(高温60℃)考察结果
备注:■白色至类白色冻干块状物;●无色澄明液体。
★按照容器(西林瓶)总体积的三分之一来灌装
▲每瓶中的含有德拉沙星葡甲胺(以德拉沙星计)的质量相同(每瓶中含500mg)。
由长期考查试验可知:实施例1~7与对比实施例1在24个月内外观性状、pH、水分、有关物质与含量等各项指标一致,均未发生明显变化。在主药含量相等的情况下,对比实施例1中灌装量大,使用的容器西林瓶大,不利于生产和运输,同时增加了成本。而对比实施例2~5则在溶液配制过程中主药不能完全溶解。对比实施例6的有关物质明显变大。
Claims (8)
1.一种注射用德拉沙星葡甲胺,其特征在于,由活性成分德拉沙星葡甲胺、葡甲 胺、磺丁基醚-β-环糊精、苯甲酸苄酯、pH调节剂和注射用水组成;所述德拉沙星葡甲胺的浓度范围为50mg/ml~100mg/ml;所述苯甲酸苄酯与磺丁基醚-β-环糊精的质量比为范围为1:3~1:2;所述的德拉沙星葡甲胺和葡甲胺的质量比为1:0.1~1:0.5;其中,德拉沙星葡甲胺的质量是以德拉沙星计。
2.如权利要求1所述的一种注射用德拉沙星葡甲胺,其特征在于,所述德拉沙星葡甲胺与磺丁基醚-β-环糊精的质量比为范围为1:1.2~1:1.6。
3.如权利要求2所述的一种注射用德拉沙星葡甲胺,其特征在于,所述德拉沙星葡甲胺与磺丁基醚-β-环糊精的质量比为范围为1:1.4。
4.如权利要求1所述的一种注射用德拉沙星葡甲胺,其特征在于,所述苯甲酸苄酯与磺丁基醚-β-环糊精的质量比为范围为1:2.5。
5.如权利要求1所述的一种注射用德拉沙星葡甲胺,其特征在于,所述的pH调节剂为盐酸、磷酸、乙酸或柠檬酸中的一种或几种的混合溶液。
6.如权利要求1-5任一权利要求所述的一种注射用德拉沙星葡甲胺的制备方法,其特征在于,包括以下步骤:称取处方量的苯甲酸苄酯,加入预冷至室温适量的注射用水中,搅拌均匀,加入处方量的磺丁基醚-β-环糊精,升温搅拌均匀,加入处方量德拉沙星葡甲胺、葡甲胺,保温搅拌至完全溶解,调节pH,定容至总量,搅拌均匀;过滤,灌装,冷冻干燥,目检即得成品。
7.如权利要求6所述的一种注射用德拉沙星葡甲胺的制备方法,其特征在于,所述的pH为7.0~8.0。
8.如权利要求6所述的一种注射用德拉沙星葡甲胺的制备方法,其特征在于,所述的pH为7.5。
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