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:
Nov. 26, 2002
Filed:
Oct. 12, 2000
Applicant:
Inventors:
Subhash Prataprao Chavan, Maharashtra, IN;
Amar Gopal Chittiboyina, Maharashtra, IN;
Subhash Krishnaji Kamat, Maharashtra, IN;
Uttam Ramrao Kalkote, Maharashtra, IN;
Thotapallil Ravindranathan, Maharashtra, IN;
Assignee:
Council of Scientific and Industrial Research, New Delhi, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
L07D / ;
U.S. Cl.
CPC ...
L07D / ;
Abstract
A novel route has been developed for substituted 2-[-6-benzyl-5-oxo-3-phenyl-(3s,7s,7aR)-perhydroimidazol[1,5-c][1,3]thiazol] compounds; crucial intermediates for D(+)-biotin of formula (7) which involves simple, efficient, practical and cost effective protocol. These are crucial intermediates for commercially important D(+)-biotin preparation. These compounds are more stable and are produced by non-hazardous methods.