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:
May. 14, 2013
Filed:
Mar. 26, 2010
Balaguru Murugesan, Coimbatore, IN;
Anandam Vempali, Nellore, IN;
Swargam Sathyanarayana, Karim Nagar, IN;
Rajesh Kumar Thaper, Banjara Hills, IN;
Mohan Prasad, Gurgaon, IN;
Balaguru Murugesan, Coimbatore, IN;
Anandam Vempali, Nellore, IN;
Swargam Sathyanarayana, Karim Nagar, IN;
Rajesh Kumar Thaper, Banjara Hills, IN;
Mohan Prasad, Gurgaon, IN;
Ranbaxy Laboratories Limited, New Delhi, IN;
Abstract
The present invention relates to a process for preparation of erlotinib of Formula I or its pharmaceutically acceptable salt thereof. The present invention also relates to process for the preparation of erlotinib trifluoroacetate. The present invention also relates to a nove-ICrystalline form of erlotinib trifluoroacetate designated as Form E and process for its preparation. The present invention further relates to process for the preparation of erlotinib hydrochloride from erlotinib trifluoroacetate.