The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2013
Filed:
Apr. 16, 2008
Applicants:
Dharmaraj Ramachandra Rao, Maharashtra, IN;
Rajendra Narayanrao Kankan, Maharashtra, IN;
Srinivas Laxminarayan Pathi, Karnataka, IN;
Inventors:
Dharmaraj Ramachandra Rao, Maharashtra, IN;
Rajendra Narayanrao Kankan, Maharashtra, IN;
Srinivas Laxminarayan Pathi, Karnataka, IN;
Assignee:
CIPLA Limited, Mumbai, IN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 239/94 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a compound of formula III, and a process for preparing a compound of formula V comprising converting a compound of formula III to the compound V, wherein X is fluoro, chloro, bromo or iodo. There is also provided a process for preparing a compound of formula XI comprising converting a compound of formula X to the compound XI. The compounds V and XI so prepared may be used in a process for preparing gefitinib.