SE8303465L - Forfarande for framstellning av 2-(2-aminotiazol-4-yl)glyoxylsyraderivat eller ett salt derav och mellanprodukter herfor samt forfarande for framstellning av mellanprodukterna - Google Patents

Forfarande for framstellning av 2-(2-aminotiazol-4-yl)glyoxylsyraderivat eller ett salt derav och mellanprodukter herfor samt forfarande for framstellning av mellanprodukterna

Info

Publication number: SE8303465L
Authority: SE; Sweden
Prior art keywords: intermediates; preparing; procedure; salt; aminotiazol
Prior art date: 1982-06-17

Application number

SE8303465A

Other languages

English (en)

Other versions

SE452981B (sv

SE8303465D0 (sv

Inventor

H Sadaki

H Imaizumi

K Takeda

T Inaba

R Takeno

S Morita

T Kajita

I Saikawa

Original Assignee

Toyama Chemical Co Ltd

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.)

1982-06-17

Filing date

1983-06-16

Publication date

1983-12-18

1982-06-17 Priority claimed from JP57103108A external-priority patent/JPS58222048A/ja

1982-06-17 Priority claimed from JP57103109A external-priority patent/JPS58222076A/ja

1983-05-06 Priority claimed from JP58078201A external-priority patent/JPS59204179A/ja

1983-06-16 Application filed by Toyama Chemical Co Ltd filed Critical Toyama Chemical Co Ltd

1983-06-16 Publication of SE8303465D0 publication Critical patent/SE8303465D0/sv

1983-12-18 Publication of SE8303465L publication Critical patent/SE8303465L/sv

1988-01-04 Publication of SE452981B publication Critical patent/SE452981B/sv

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/63—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/22—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
- C07D277/28—Radicals substituted by nitrogen atoms
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/79—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/04—Saturated compounds containing keto groups bound to acyclic carbon atoms
- C07C49/16—Saturated compounds containing keto groups bound to acyclic carbon atoms containing halogen
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members 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
- C07D277/38—Nitrogen atoms
- C07D277/40—Unsubstituted amino or imino radicals
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members 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
- C07D277/38—Nitrogen atoms
- C07D277/44—Acylated amino or imino radicals
- C07D277/46—Acylated amino or imino radicals by carboxylic acids, or sulfur or nitrogen analogues thereof
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members 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
- C07D277/38—Nitrogen atoms
- C07D277/44—Acylated amino or imino radicals
- C07D277/48—Acylated amino or imino radicals by radicals derived from carbonic acid, or sulfur or nitrogen analogues thereof, e.g. carbonylguanidines
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Crystallography & Structural Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Thiazole And Isothizaole Compounds (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Plural Heterocyclic Compounds (AREA)
Cephalosporin Compounds (AREA)

SE8303465A 1982-06-17 1983-06-16 Nytt forfarande for framstellning av 2-(2-aminotiazol-4-yl)-glyoxylsyraderivat eller ett salt derav SE452981B (sv)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP57103108A JPS58222048A (ja)	1982-06-17	1982-06-17	１―ブロモ―４―クロロブタン―２，３―ジオン
JP57103109A JPS58222076A (ja)	1982-06-17	1982-06-17	２−アミノチアゾ−ル誘導体
JP58078201A JPS59204179A (ja)	1983-05-06	1983-05-06	２―（２―アミノチアゾール―４―イル）グリオキシル酸誘導体またはその塩の製造法

Publications (3)

Publication Number	Publication Date
SE8303465D0 SE8303465D0 (sv)	1983-06-16
SE8303465L true SE8303465L (sv)	1983-12-18
SE452981B SE452981B (sv)	1988-01-04

Family

ID=27302641

Family Applications (3)

Application Number	Title	Priority Date	Filing Date
SE8303465A SE452981B (sv)	1982-06-17	1983-06-16	Nytt forfarande for framstellning av 2-(2-aminotiazol-4-yl)-glyoxylsyraderivat eller ett salt derav
SE8701193A SE8701193L (sv)	1982-06-17	1987-03-23	Nya mellanprodukter for framstellning av 2-(2-aminotiazol-4-yl)-glyoxylsyraderivat eller ett salt derav samt forfarande for framstellning av mellanprodukterna
SE8701192A SE8701192D0 (sv)	1982-06-17	1987-03-23	Nya 2-aminotiazolderivat eller salter derav for framstellning av 2-(2-aminotiazol-4-yl)-glyoxylsyraderivat eller ett salt derav samt forfarande for framstellning av dessa

Family Applications After (2)

Application Number	Title	Priority Date	Filing Date
SE8701193A SE8701193L (sv)	1982-06-17	1987-03-23	Nya mellanprodukter for framstellning av 2-(2-aminotiazol-4-yl)-glyoxylsyraderivat eller ett salt derav samt forfarande for framstellning av mellanprodukterna
SE8701192A SE8701192D0 (sv)	1982-06-17	1987-03-23	Nya 2-aminotiazolderivat eller salter derav for framstellning av 2-(2-aminotiazol-4-yl)-glyoxylsyraderivat eller ett salt derav samt forfarande for framstellning av dessa

Country Status (21)

Country	Link
US (2)	US4563534A (sv)
KR (1)	KR860001027B1 (sv)
AT (1)	AT380877B (sv)
AU (1)	AU542287B2 (sv)
BE (1)	BE897063A (sv)
CA (1)	CA1191512A (sv)
DE (2)	DE3348173C2 (sv)
DK (3)	DK161073C (sv)
ES (3)	ES8502697A1 (sv)
FI (1)	FI85470C (sv)
FR (3)	FR2528839B1 (sv)
GB (2)	GB2122988B (sv)
IL (1)	IL68931A0 (sv)
IT (1)	IT1171839B (sv)
MX (1)	MX156981A (sv)
NL (1)	NL8302151A (sv)
NO (1)	NO161114C (sv)
NZ (1)	NZ204609A (sv)
PH (3)	PH18261A (sv)
PT (1)	PT76880B (sv)
SE (3)	SE452981B (sv)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU567990B2 (en) *	1982-06-17	1987-12-10	Toyama Chemical Co. Ltd.	Halogenated vicinal diketones
GB2122988B (en) *	1982-06-17	1986-06-11	Toyama Chemical Co Ltd	Process for producing 2-(2-aminothiazol-4-yl) glyoxylic acid derivative; intermediates
DE3412293A1 (de) *	1984-04-03	1985-10-03	Basf Ag, 6700 Ludwigshafen	Thiazolderivate
US5484928A (en) *	1984-04-10	1996-01-16	Biochemie Gesellschaft M.B.H.	2-(2-aminothiazol-4-yl)-2-oxoacetic acid derivatives
EP0407651A3 (en) *	1989-07-10	1991-08-07	J. Uriach & Cia. S.A.	Use of 1,3-diisobutyl-8-methylxanthine as a bronchodilator and antiallergy agent
EP3405011A1 (en) *	2017-05-16	2018-11-21	Arjo Wiggins Fine Papers Limited	Paper-in-resin electronics - process for producing it and application in manufactured products

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2821555A (en) *	1957-01-07	1958-01-28	Dow Chemical Co	1-bromo-2, 3-butanedione and its 3-oxime derivative
US4191762A (en) *	1974-03-14	1980-03-04	Fujisawa Pharmaceutical Co., Ltd.	2-Lower alkyl-7-substituted amino-2 or 3-cephem-4-carboxylic acid compounds
DE2710902A1 (de) *	1977-03-12	1978-09-21	Hoechst Ag	Cephemderivate und verfahren zu ihrer herstellung
US4390534A (en) *	1978-12-29	1983-06-28	Fujisawa Pharmaceutical Co., Ltd.	Cephem and cepham compounds
US4308391A (en) *	1979-10-01	1981-12-29	Monsanto Company	2-Amino-4-substituted-thiazolecarboxylic acids and their derivatives
NL8100539A (nl) *	1980-02-12	1981-09-01	Rhone Poulenc Ind	Nieuwe thiolesters, de bereiding daarvan en hun gebruik bij syntheses.
CH642957A5 (de) *	1980-02-18	1984-05-15	Lonza Ag	Verfahren zur herstellung von (2-aminothiazol-4-yl)-essigsaeure-hydrochlorid.
US4374843A (en) *	1980-10-14	1983-02-22	Pfizer Inc.	2-Guanidino-4-heteroarylthiazoles
GB2122988B (en) *	1982-06-17	1986-06-11	Toyama Chemical Co Ltd	Process for producing 2-(2-aminothiazol-4-yl) glyoxylic acid derivative; intermediates

1983
- 1983-06-08 GB GB08315700A patent/GB2122988B/en not_active Expired
- 1983-06-08 AU AU15500/83A patent/AU542287B2/en not_active Ceased
- 1983-06-09 IL IL68931A patent/IL68931A0/xx not_active IP Right Cessation
- 1983-06-09 CA CA000430079A patent/CA1191512A/en not_active Expired
- 1983-06-10 DE DE3348173A patent/DE3348173C2/de not_active Expired
- 1983-06-10 DE DE19833321127 patent/DE3321127A1/de active Granted
- 1983-06-14 FI FI832152A patent/FI85470C/sv not_active IP Right Cessation
- 1983-06-14 AT AT0219783A patent/AT380877B/de active
- 1983-06-14 US US06/504,317 patent/US4563534A/en not_active Expired - Fee Related
- 1983-06-15 IT IT48504/83A patent/IT1171839B/it active
- 1983-06-15 FR FR8309863A patent/FR2528839B1/fr not_active Expired
- 1983-06-16 ES ES523348A patent/ES8502697A1/es not_active Expired
- 1983-06-16 BE BE0/211013A patent/BE897063A/fr not_active IP Right Cessation
- 1983-06-16 PH PH29065A patent/PH18261A/en unknown
- 1983-06-16 DK DK278883A patent/DK161073C/da not_active IP Right Cessation
- 1983-06-16 NO NO832178A patent/NO161114C/no unknown
- 1983-06-16 PT PT76880A patent/PT76880B/pt not_active IP Right Cessation
- 1983-06-16 MX MX83197676A patent/MX156981A/es unknown
- 1983-06-16 KR KR1019830002682A patent/KR860001027B1/ko not_active IP Right Cessation
- 1983-06-16 SE SE8303465A patent/SE452981B/sv not_active IP Right Cessation
- 1983-06-16 NL NL8302151A patent/NL8302151A/nl not_active Application Discontinuation
- 1983-06-16 NZ NZ204609A patent/NZ204609A/en unknown
1984
- 1984-01-13 FR FR848400472A patent/FR2540860B1/fr not_active Expired
- 1984-01-13 FR FR8400471A patent/FR2540873B1/fr not_active Expired
- 1984-03-01 ES ES530213A patent/ES8506572A1/es not_active Expired
- 1984-03-01 ES ES530212A patent/ES8507522A1/es not_active Expired
- 1984-09-07 PH PH31191A patent/PH19985A/en unknown
- 1984-09-07 PH PH31192A patent/PH20516A/en unknown
1985
- 1985-07-09 US US06/753,068 patent/US4667040A/en not_active Expired - Fee Related
- 1985-07-22 GB GB08518464A patent/GB2167410B/en not_active Expired
1987
- 1987-03-23 SE SE8701193A patent/SE8701193L/sv not_active Application Discontinuation
- 1987-03-23 SE SE8701192A patent/SE8701192D0/sv not_active Application Discontinuation
1990
- 1990-09-21 DK DK229190A patent/DK163816C/da not_active IP Right Cessation
- 1990-09-21 DK DK229090A patent/DK163582C/da active

Also Published As

Publication number	Publication date
PH20516A (en)	1987-01-26
SE8701192L (sv)	1987-03-23
SE8701192D0 (sv)	1987-03-23
FI85470C (sv)	1992-04-27
IT1171839B (it)	1987-06-10
AU1550083A (en)	1983-12-22
ES530213A0 (es)	1985-07-16
ES8506572A1 (es)	1985-07-16
GB8315700D0 (en)	1983-07-13
ES523348A0 (es)	1985-01-16
FR2528839A1 (fr)	1983-12-23
FI832152A0 (fi)	1983-06-14
FR2540873A1 (fr)	1984-08-17
DK229090D0 (da)	1990-09-21
ES530212A0 (es)	1985-09-01
GB2122988A (en)	1984-01-25
FR2528839B1 (fr)	1987-01-02
DK229190D0 (da)	1990-09-21
SE452981B (sv)	1988-01-04
DK163816B (da)	1992-04-06
ES8507522A1 (es)	1985-09-01
DE3348173C2 (sv)	1989-10-05
FI85470B (fi)	1992-01-15
NO832178L (no)	1983-12-19
DK229190A (da)	1990-09-21
DK163582B (da)	1992-03-16
NL8302151A (nl)	1984-01-16
ES8502697A1 (es)	1985-01-16
FR2540860B1 (fr)	1988-03-25
PT76880A (en)	1983-07-01
KR860001027B1 (ko)	1986-07-28
DE3321127C2 (sv)	1988-06-01
DK278883A (da)	1983-12-18
DE3321127A1 (de)	1983-12-22
PT76880B (en)	1986-01-27
SE8701193D0 (sv)	1987-03-23
AT380877B (de)	1986-07-25
GB2167410A (en)	1986-05-29
AU542287B2 (en)	1985-02-14
GB2167410B (en)	1986-11-05
NO161114C (no)	1989-07-05
IL68931A0 (en)	1983-10-31
MX156981A (es)	1988-10-18
FR2540860A1 (fr)	1984-08-17
DK278883D0 (da)	1983-06-16
BE897063A (fr)	1983-12-16
DK163582C (da)	1992-08-10
DK163816C (da)	1992-09-21
ATA219783A (de)	1985-12-15
US4667040A (en)	1987-05-19
DK161073B (da)	1991-05-27
DK161073C (da)	1991-11-18
GB8518464D0 (en)	1985-08-29
SE8303465D0 (sv)	1983-06-16
NZ204609A (en)	1985-12-13
FR2540873B1 (fr)	1987-01-02
KR840005117A (ko)	1984-11-03
CA1191512A (en)	1985-08-06
PH18261A (en)	1985-05-14
GB2122988B (en)	1986-06-11
FI832152L (fi)	1983-12-18
IT8348504A0 (it)	1983-06-15
PH19985A (en)	1986-08-28
SE8701193L (sv)	1987-03-23
US4563534A (en)	1986-01-07
NO161114B (no)	1989-03-28
DK229090A (da)	1990-09-21

Publication	Publication Date	Title
SE8902264L (sv)	1989-06-21	2-(5-fluoronikotinoyl)-aettiksyraderivat och foerfarande foer framstaellning av detta
PT69775A (fr)	1979-07-01	Procede de preparation de derives de phenylpiperazine
MA20250A1 (fr)	1985-07-01	Procede de preparation de derives de cephalosporine.
IT7919262A0 (it)	1979-01-12	Procedimento per la produzione di cefalosporine.
ATE24729T1 (de)	1987-01-15	Kristalline salze von cefodizim und verfahren zu ihrer herstellung.
IT8022477A0 (it)	1980-05-30	Processo per la preparazione di 2-cloro-propionato di alchile mediante clorurazione di lattano di alchile.
SE8303465L (sv)	1983-12-18	Forfarande for framstellning av 2-(2-aminotiazol-4-yl)glyoxylsyraderivat eller ett salt derav och mellanprodukter herfor samt forfarande for framstellning av mellanprodukterna
IT8021822A0 (it)	1980-05-06	Eterociclil derivati di oxi-imino-sostituite cefalosporine.
SE7902598L (sv)	1979-10-04	Cephalosporinanaloger
SE8104771L (sv)	1982-02-12	Cefalosporinderivat
PT72421A (de)	1981-02-01	Verfahren zur herstellung von kristallinen salzen
ES508280A0 (es)	1983-02-16	Procedimiento para preparar derivados de cefalosporina.
MA18772A1 (fr)	1980-10-01	Procede de preparation de derives de benzothiazole
IT1164907B (it)	1987-04-15	Procedimento per la produzione di cefalosporine
BE877884A (fr)	1979-11-16	Procede de preparation de derives de cepheme
PT69288A (fr)	1979-03-01	Procede de preparation de derives benzylideniques
SE8008540L (sv)	1981-06-08	N-substituerade tiazolylderivat av oxi-imino-substituerade cefalosporiner och forfarande for framstellning derav
PT71444A (fr)	1980-07-01	Procede pour la preparation de derives de benzimydazole
IT8021036A0 (it)	1980-03-28	Procedimento migliorato per laproduzione di 3-o-demetilfortimicine.
MA20092A1 (fr)	1984-12-31	Procede de preparation de derives de pyrimidinetrione.
MA21352A1 (fr)	1989-04-01	Procede de preparation de nouveaux derives de thieno-imidazole substitues.
ES508833A0 (es)	1983-04-01	Procedimientos para preparar derivados de acido cefaloesporanico.
ES513929A0 (es)	1983-04-16	Procedimiento para la obtencion de cefalosporina 7-aca.
ES513539A0 (es)	1983-12-01	Procedimiento para preparar derivados del acido cefaloesporanico.
IT7920992A0 (it)	1979-03-15	Processo per la preparazione di derivati imidazolici.

Legal Events

Date	Code	Title	Description
1995-01-31	NAL	Patent in force	Ref document number: 8303465-2 Format of ref document f/p: F
1997-03-03	NUG	Patent has lapsed	Ref document number: 8303465-2 Format of ref document f/p: F

Date

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Title

Description

1995-01-31

NAL

Patent in force

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1997-03-03

NUG

Patent has lapsed