Process For Resolving Zopiclone

Abstract: The present invention provides a process for the preparation of the dextrorotatory isomer of zopiclone (eszopiclone). The present invention also provides eszopiclone di-p-anisolyl-L-tartrate and eszopiclone diacetyl-L-tartrate, which are useful as intermediates in a process for preparing eszopiclone.

Patent Information

Application #

Filing Date

02 June 2011

Publication Number

52/2011

Publication Type

INA

Invention Field

CHEMICAL

Status

Email

Parent Application

Applicants

CIPLA LIMITED

Mumbai Central Mumbai – 400 008 Maharashtra India

Inventors

1. RAO Dharmaraj Ramachandra

4/403 Garden Enclave Pokhran Road 2 Thane (W) Mumbai - 400 601 Maharashtra India

2. KANKAN Rajendra Narayanrao

1204 Heritage Hiranandani Gardens Powai Mumbai 400 076 Maharashtra India

3. GHAGARE Maruti Ganpati

204/4 Shree Swami Krupa Dhokali Kolshet Road Thane (W) – 400 607 Maharashtra India

4. SAROJ Sunilkumar Parasnath

Pechubai Chawl Hariyali Village Opp. S.S.V. English School Vikhroli (E) Mumbai – 400 083 Maharashtra India

Specification

See Attachment

Documents

Application Documents

#	Name	Date
1	1135-MUMNP-2011-GENERAL POWER OF AUTHORITY-(18-12-2015).pdf	2015-12-18
2	1135-MUMNP-2011-FORM NO.INC-22-(18-12-2015).pdf	2015-12-18
3	1135-MUMNP-2011-FORM 13-(18-12-2015).pdf	2015-12-18
4	1135-MUMNP-2011-FORM 1 2 3 (MARKED COPY)-(18-12-2015).pdf	2015-12-18
5	1135-MUMNP-2011-CORRESPONDENCE-(18-12-2015).pdf	2015-12-18
6	Translation-Search Report.pdf	2018-08-10
7	Priority Document.pdf	2018-08-10
11	1135-MUMNP-2011_EXAMREPORT.pdf	2018-08-10
12	1135-MUMNP-2011-GENERAL POWER OF ATTORNEY(1-8-2011).pdf	2018-08-10
13	1135-MUMNP-2011-FORM PCT-IB-373(21-6-2011).pdf	2018-08-10
14	1135-MUMNP-2011-FORM PCT-IB-306(20-6-2011).pdf	2018-08-10
15	1135-MUMNP-2011-FORM 18(29-6-2012).pdf	2018-08-10
16	1135-MUMNP-2011-CORRESPONDENCE(29-8-2011).pdf	2018-08-10
17	1135-MUMNP-2011-CORRESPONDENCE(29-6-2012).pdf	2018-08-10
18	1135-MUMNP-2011-CORRESPONDENCE(21-6-2011).pdf	2018-08-10
19	1135-MUMNP-2011-CORRESPONDENCE(20-6-2011).pdf	2018-08-10
20	1135-MUMNP-2011-CORRESPONDENCE(1-8-2011).pdf	2018-08-10
21	1135-MUMNP-2011-ANNEXURE TO FORM 3(29-8-2011).pdf	2018-08-10