Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1274/CHE/2011 A
(19) INDIA
(22) Date of filing of Application :12/04/2011 (43) Publication Date : 21/06/2013
(54) Title of the invention : NOVEL PROCESS FOR THE PREPARATION OF RIVASTIGMINE
(51) International classification :C07C
(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)MYLAN LABORATORIES LIMITED
Address of Applicant :R&D CENTER,PLOT.NO:34A,
ANRICH INDUSTRIAL ESTATE,
BOLLARAM(PT),JINNARAM(MD),
MEDAK(DT),HYDERABAD,A.P-502 325 India
(72)Name of Inventor :
1)SETHI, MADHURESH KUMAR
2)BHANDYA, SOMASHEKAR RUDRAPPA
3)MADDUR, NAGARAJ
4)SHUKLA, ROHIT
5)ANISH KUMAR
6)POTLURI, SUSHMITHA
7)V S N JAYALAKSHMI
(57) Abstract :
The present invention related to a novel biocatalytic process for the preparation of (S) C1-C4 carboxylic acid, 1-(3-methoxyphenyl)-ethyl
ester of formula (II) and its fUrther conversion into (S)-Rivastigniine or phramceutically acceptable salts thereof
No. of Pages : 16 No. of Claims : 9
The Patent Office Journal 21/06/2013 13756