NO20052189L - Framgangsmate for framstilling av 2,6-diamino-4,5,6,7-tetrahydro-benzothiazole - Google Patents

Framgangsmate for framstilling av 2,6-diamino-4,5,6,7-tetrahydro-benzothiazole

Info

Publication number
NO20052189L
NO20052189L NO20052189A NO20052189A NO20052189L NO 20052189 L NO20052189 L NO 20052189L NO 20052189 A NO20052189 A NO 20052189A NO 20052189 A NO20052189 A NO 20052189A NO 20052189 L NO20052189 L NO 20052189L
Authority
NO
Norway
Prior art keywords
diamino
benzothiazole
tetrahydro
preparation
tetrahydrobenzothiazole
Prior art date
Application number
NO20052189A
Other languages
English (en)
Inventor
Rajendra Narayanrao Kankan
Dharmaraj Ramachandra Rao
Original Assignee
Cipla 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.)
Filing date
Publication date
Application filed by Cipla Ltd filed Critical Cipla Ltd
Publication of NO20052189L publication Critical patent/NO20052189L/no

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
    • C07D277/62—Benzothiazoles
    • C07D277/68—Benzothiazoles 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 in position 2
    • C07D277/82—Nitrogen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Thiazole And Isothizaole Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

2,6-diamino-4,5,6,7-tetrahydrobenzotiasol, som er nyttig ved fremstilling av pramipexol, lages ved (i) la brom reagere med en løsning av 4-acetamidosykloheksanon i vann under dannelse av 2bromo-4-acetamido-sykloheksanon, (ii) etter trinn (i) å tilsette tiourea for å fa dannet 6-acetylamino-2-amino-4,5,6,7-tetrahydro-benzotiazoi, (iii) etter trinn (ii) å tilsette en vandig løsning av hydrobromsyre for åfå dannet 2,6-diamino-4,5,6,7-tetrahydro-benzotiasol dihydrobromid og (iv) etter trinn (iii) å isolere 2,6-diamino-4,5,6,7-tetrahydrobenzotiasol.
NO20052189A 2002-11-04 2005-05-04 Framgangsmate for framstilling av 2,6-diamino-4,5,6,7-tetrahydro-benzothiazole NO20052189L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0225701A GB2394951A (en) 2002-11-04 2002-11-04 One pot synthesis of 2,6-diamino-4,5,6,7-tetrahydro-benzothiazole
PCT/GB2003/004734 WO2004041797A1 (en) 2002-11-04 2003-11-03 Process for preparing 2,6-diamino-4,5,6,7-tetrahydro-benzothiazole

Publications (1)

Publication Number Publication Date
NO20052189L true NO20052189L (no) 2005-06-03

Family

ID=9947186

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20052189A NO20052189L (no) 2002-11-04 2005-05-04 Framgangsmate for framstilling av 2,6-diamino-4,5,6,7-tetrahydro-benzothiazole

Country Status (25)

Country Link
US (1) US7285669B2 (no)
EP (1) EP1562921B1 (no)
JP (1) JP4708792B2 (no)
KR (1) KR101086844B1 (no)
CN (1) CN100551918C (no)
AP (1) AP1882A (no)
AT (1) ATE396180T1 (no)
AU (1) AU2003278396B2 (no)
BR (1) BR0315919A (no)
CA (1) CA2505179C (no)
DE (1) DE60321208D1 (no)
EC (1) ECSP055835A (no)
GB (1) GB2394951A (no)
HR (1) HRPK20050403B3 (no)
IS (1) IS7882A (no)
MA (1) MA27534A1 (no)
MX (1) MXPA05004815A (no)
NO (1) NO20052189L (no)
NZ (1) NZ539953A (no)
PL (1) PL376543A1 (no)
PT (1) PT1562921E (no)
RU (1) RU2305097C2 (no)
TN (1) TNSN05125A1 (no)
WO (1) WO2004041797A1 (no)
ZA (1) ZA200503548B (no)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0221513D0 (en) * 2002-09-17 2002-10-23 Generics Uk Ltd Novel compounds and processes
WO2006012277A2 (en) * 2004-06-30 2006-02-02 Amr Technology, Inc. Biocatalytic process for preparing enantiomerically enriched pramipexole
CA2553311A1 (en) * 2004-07-01 2006-01-12 Alembic Limited Improved process for the preparation of biologically active tetrahydrobenzthiazole derivative
US8518926B2 (en) 2006-04-10 2013-08-27 Knopp Neurosciences, Inc. Compositions and methods of using (R)-pramipexole
PL2026803T3 (pl) 2006-05-16 2012-05-31 Knopp Neurosciences Inc Kompozycje R(+) i S(-) pramipeksolu i sposoby ich zastosowania
US8524695B2 (en) 2006-12-14 2013-09-03 Knopp Neurosciences, Inc. Modified release formulations of (6R)-4,5,6,7-tetrahydro-N6-propyl-2,6-benzothiazole-diamine and methods of using the same
SI22446A (sl) * 2007-02-07 2008-08-31 Krka, Tovarna Zdravil, D.D., Novo Mesto Nov postopek za sintezo pramipeksola in njegovih farmacevtsko sprejemljivih soli
WO2008104847A2 (en) * 2007-02-26 2008-09-04 Wockhardt Research Centre Processes for the preparation of pramipexole and salts thereof
RU2454409C2 (ru) * 2007-03-14 2012-06-27 Нопп Ньюросайенсиз, Инк. Синтез хирально очищенных замещенных бензотиазолдиаминов
CN101429173B (zh) * 2007-11-09 2012-12-05 重庆医药工业研究院有限责任公司 一种普拉克索中间体2,6-二氨基-4,5,6,7-四氢-苯并噻唑的制备方法
KR20110071064A (ko) 2008-08-19 2011-06-28 크놉 뉴로사이언시스 인코포레이티드 (ｒ)-프라미펙솔을 사용하는 조성물 및 방법
WO2011021214A2 (en) * 2009-08-07 2011-02-24 Msn Laboratories Limited Improved process for the preparation of (s)-2-amino-4,5,6,7-tetrahydro-6 - (propylamino) benzothiazole and its pharmaceutically acceptable salts
US9512096B2 (en) 2011-12-22 2016-12-06 Knopp Biosciences, LLP Synthesis of amine substituted 4,5,6,7-tetrahydrobenzothiazole compounds
US9662313B2 (en) 2013-02-28 2017-05-30 Knopp Biosciences Llc Compositions and methods for treating amyotrophic lateral sclerosis in responders
US9468630B2 (en) 2013-07-12 2016-10-18 Knopp Biosciences Llc Compositions and methods for treating conditions related to increased eosinophils
SI3019167T1 (sl) 2013-07-12 2021-04-30 Knopp Biosciences Llc Zdravljenje povišanih ravni eozinofilcev in / ali bazofilcev
US9763918B2 (en) 2013-08-13 2017-09-19 Knopp Biosciences Llc Compositions and methods for treating chronic urticaria
WO2015023786A1 (en) 2013-08-13 2015-02-19 Knopp Biosciences Llc Compositions and methods for treating plasma cell disorders and b-cell prolymphocytic disorders
CN104311507A (zh) * 2013-10-09 2015-01-28 安徽万邦医药科技有限公司 (6s)-2,6-二氨基-4,5,6,7-四氢苯并噻唑的制备方法
CN103613562B (zh) * 2013-11-25 2015-09-30 浙江美诺华药物化学有限公司 一种普拉克索的制备方法
CN107573301B (zh) * 2017-11-08 2020-08-11 江苏长青农化股份有限公司 一种三环唑中间体的制备方法
CN109232471B (zh) * 2018-10-31 2022-05-10 安徽省庆云医药股份有限公司 一种盐酸普拉克索的制备方法
CN111362884A (zh) * 2018-12-26 2020-07-03 江苏神龙药业股份有限公司 一种2,6-二氨基-4,5,6,7-四氢-苯并噻唑的工业化制备方法
CN110734413A (zh) * 2019-12-02 2020-01-31 山东铂源药业有限公司 一种普拉克索中间体2,6-二氨基-4,5,6,7-四氢苯并噻唑的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3447075A1 (de) * 1984-12-22 1986-07-03 Dr. Karl Thomae Gmbh, 7950 Biberach Tetrahydro-benzthiazole, deren herstellung und deren verwendung als zwischenprodukte oder als arzneimittel
ATE45735T1 (de) * 1984-12-22 1989-09-15 Thomae Gmbh Dr K Tetrahydro-benzthiazole, deren herstellung und deren verwendung als zwischenprodukte oder als arnzneimittel.
ES2187249B1 (es) * 2000-09-18 2004-09-16 Synthon Bv Procedimiento para la preparacion de 2-amino-6-(alquil)amino-4,5,6,7-tetrahidrobenzotiazoles.

Also Published As

Publication number Publication date
RU2305097C2 (ru) 2007-08-27
IS7882A (is) 2005-06-02
ECSP055835A (es) 2005-11-22
US7285669B2 (en) 2007-10-23
AP2005003306A0 (en) 2005-06-30
TNSN05125A1 (en) 2007-05-14
DE60321208D1 (de) 2008-07-03
CA2505179A1 (en) 2004-05-21
CN100551918C (zh) 2009-10-21
AU2003278396B2 (en) 2010-04-01
EP1562921A1 (en) 2005-08-17
AP1882A (en) 2008-08-21
PT1562921E (pt) 2008-06-11
MXPA05004815A (es) 2005-08-18
RU2005117364A (ru) 2006-02-27
MA27534A1 (fr) 2005-09-01
ATE396180T1 (de) 2008-06-15
AU2003278396A1 (en) 2004-06-07
GB2394951A (en) 2004-05-12
KR101086844B1 (ko) 2011-11-24
HRPK20050403B3 (en) 2007-05-31
NZ539953A (en) 2007-11-30
HRP20050403A2 (en) 2005-12-31
KR20050072474A (ko) 2005-07-11
CN1735604A (zh) 2006-02-15
JP4708792B2 (ja) 2011-06-22
US20060100256A1 (en) 2006-05-11
EP1562921B1 (en) 2008-05-21
BR0315919A (pt) 2005-09-20
PL376543A1 (pl) 2006-01-09
CA2505179C (en) 2012-10-16
JP2006506412A (ja) 2006-02-23
ZA200503548B (en) 2006-12-27
WO2004041797A1 (en) 2004-05-21
GB0225701D0 (en) 2002-12-11

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