Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1719/CHE/2011 A
(19) INDIA
(22) Date of filing of Application :20/05/2011 (43) Publication Date : 21/06/2013
(54) Title of the invention : PROCESS FOR THE PREPARATION OF TRANS-5-CHLORO-2,3,3A, 12B-TETRAHYDRO-2-
METHY1-1H-DIBENZ [2,3,6,7]OXEPINO[4,5-C]PYRROL-1-ONE
(51) International classification :C07D
(31) Priority Document No :NA
(32) Priority Date :NA
(33) Name of priority country :NA
(86) International Application No
:NA
Filing Date
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number
:NA
Filing Date
:NA
(71)Name of Applicant :
1)MSN LABORATORIES LIMITED
Address of Applicant :FACTORY: SY.NO.317 & 323,
RUDRARAM (VIL), PATANCHERU (MDL), MEDAK
(DISTRICT), ANDHRA PRADESH,
India
(72)Name of Inventor :
1)SRINIVASAN THIRUMALAI RAJAN
2)SAJJA ESWARAIAH
3)PERI SEETHA RAMA SARMA
502 329 Andhra Pradesh
(57) Abstract :
The present invention relates to an improved process for the preparation of trans- 5-chloro-2,3,3a,12b-tetrahydro-2-methyl-lHdibenz[2,3,6,7]oxepino[4,5c]pyrrol-l-one
compound of formula-1.
No. of Pages : 17 No. of Claims : 10
The Patent Office Journal 21/06/2013 13946