Title:
PROCESS FOR THE PREPARATION OF MONTELUKAST AND ITS SALTS
Document Type and Number:
WIPO Patent Application WO2006008751
Kind Code:
A3
Abstract:
The present invention relates to an improved process for the preparation of 1-[[[(IR)-I-[3[(IE)-2-(7chloro-2-quinolinyl) ethenyl] phenyl]-3-[2-(l-hydroxy-l-methylethyl) phenyl] propyl] thio] methyl] cyclopropaneacetic acid (Formula-1) and its salts using Methyl 2-[(3S)-[3-[(2E)-(7-chloro quinolin-2-yl) ethenyl] phenyl]-3- halopropyl] benzoate (Formula-2)
Inventors:
CHAVA SATYANARAYANA (IN)
GORANTLA SEETA RAMANJANEYULU (IN)
INDUKURI VENKATA SUNIL KUMAR (IN)
SIMHADRI SRINIVAS (IN)
JAMMULA VERA VENKATA KRISHNA K (IN)
GORANTLA SEETA RAMANJANEYULU (IN)
INDUKURI VENKATA SUNIL KUMAR (IN)
SIMHADRI SRINIVAS (IN)
JAMMULA VERA VENKATA KRISHNA K (IN)
Application Number:
PCT/IN2004/000212
Publication Date:
October 26, 2006
Filing Date:
July 19, 2004
Export Citation:
Assignee:
MATRIX LAB LTD (IN)
CHAVA SATYANARAYANA (IN)
GORANTLA SEETA RAMANJANEYULU (IN)
INDUKURI VENKATA SUNIL KUMAR (IN)
SIMHADRI SRINIVAS (IN)
JAMMULA VERA VENKATA KRISHNA K (IN)
CHAVA SATYANARAYANA (IN)
GORANTLA SEETA RAMANJANEYULU (IN)
INDUKURI VENKATA SUNIL KUMAR (IN)
SIMHADRI SRINIVAS (IN)
JAMMULA VERA VENKATA KRISHNA K (IN)
International Classes:
C07D215/18
Domestic Patent References:
| WO1995018107A1 | 1995-07-06 | |||
| WO1996022987A1 | 1996-08-01 | |||
| WO2003066598A1 | 2003-08-14 | |||
| WO2005040123A1 | 2005-05-06 |
Foreign References:
| EP0480717A1 | 1992-04-15 | |||
| US20050107612A1 | 2005-05-19 |
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