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. 12, 1999
Filed:
Sep. 10, 1997
Applicant:
Inventors:
Robin Mark Bannister, Cambridge, GB;
Graham Evans, Cambridge, GB;
Assignee:
Darwin Discovery Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
558404 ; 558408 ;
Abstract
A process for the preparation of a compound of formula (VI), optionally in enantiomerically-enriched form (R or S), comprises chemoselective reduction of a novel compound of formula (V), wherein Ar.sup.1 and Ar.sup.2 are independently selected from optionally-substituted aromatic or heteroaromatic groups having upto 20 C atoms, Ak is C.sub.1-20 alkyl, and R is H or C.sub.1-20 alkyl. ##STR1##
Quick Actions:
Bannister, Robin. (1999). Compound and process (U.S. Patent No. 5859279). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5859279
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