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:
Jun. 30, 1998
Filed:
Jun. 14, 1996
Applicant:
Inventors:
Yuh-Lin Allen Yang, Hsin-Chu Hsien, TW;
Ay-Hua Gau, Tai-Tung Hsien, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548239 ; 549510 ;
Abstract
The present invention provides a process for preparing a (4S,5R)-2,4-diphenyl-5-carboxy-oxazoline derivative, which can serve as a taxol side-chain precursor, from the treatment of a (2R,3S)-alkyl trans-3-phenyl-2,3-epoxypropionate derivative with benzonitrile in the presence of a strong acid.