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. 05, 2016
Filed:
Oct. 29, 2013
Applicant:
Cipla Limited, Mumbai, IN;
Inventors:
Manjinder Singh Phull, Mumabi, IN;
Rajendra Narayanrao Kankan, Mumbai, IN;
Dharmaraj Ramachandra Rao, Thane, IN;
Assignee:
CIPLA LIMITED, Mumbai, IN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 293/06 (2006.01); C07H 21/00 (2006.01); C07F 9/6561 (2006.01);
U.S. Cl.
CPC ...
C07F 9/65616 (2013.01);
Abstract
The present invention provides a compound of the Formula (I) wherein R is 9-isopropyl-9H-purin-6-amine; 2-amino-9-isopropyl-1H-purin-6(9H)-one; 4-amino-1-isopropyl pyrimidin-2(1H)-one; or 1-isopropyl-5-methylpyrimidine-2,4(1H,3H)-dione, R' is —CHOC(O)R″, and R″ is —C(CH)or —CH(CH)including pharmaceutically acceptable salts thereof. The present invention also provides a process for preparing a compound of formula (Ia) and a compound of formula (I) for use in treating a viral infection.