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:
Jul. 07, 2009
Filed:
Mar. 01, 2005
Applicants:
Philip Wilson Howard, St Albans, GB;
Gyoung-dong Kang, Worcester Park, GB;
Inventors:
Philip Wilson Howard, St Albans, GB;
Gyoung-Dong Kang, Worcester Park, GB;
Assignee:
Spirogen Limited, Ryde, Isle of Wight, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 519/00 (2006.01); C07D 487/04 (2006.01); A61K 31/55 (2006.01);
U.S. Cl.
CPC ...
Abstract
Compounds and a method of synthesis of compounds of formula (Ia) or (Ib): and salts, solvates, and chemically protected forms thereof, wherein the dotted lines indicate the optional presence of a double bond between C1 and C2 or C2 and C3; Rand Rare independently selected from —H, ═O, ═CH, —CN, —R, OR, halo, ═CH—R, O—SO—R, COR and COR; Ris a carbamate-based nitrogen protecting group; and Ris an oxygen protecting group.