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. 21, 2013
Filed:
Jun. 28, 2008
Applicants:
Dattatray B. Patil, Kolhapur, IN;
Killol Patel, Janagadh, IN;
Ashok Prasad, New Delhi, IN;
Mohan Prasad, Gurgaon, IN;
Inventors:
Dattatray B. Patil, Kolhapur, IN;
Killol Patel, Janagadh, IN;
Ashok Prasad, New Delhi, IN;
Mohan Prasad, Gurgaon, IN;
Assignee:
Ranbaxy Laboratories Limited, New Delhi, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 487/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the preparation of cis-intermediate of Formula II, which is useful synthetic intermediates in the preparation of tadalafil.