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:
Sep. 26, 2000
Filed:
Jul. 23, 1999
Applicant:
Inventors:
Jongpil Chun, Daejeon, KR;
Yik-haeng Cho, Daejeon, KR;
Young Mi Park, Daejeon, KR;
Kyoung Rok Roh, Daejeon, KR;
Hosung Yu, Daejeon, KR;
Dae Il Hwang, Daejeon, KR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ; C07D / ;
U.S. Cl.
CPC ...
435126 ; 549313 ; 435 74 ;
Abstract
The present invention relates to a process for preparing optically pure (S)-3-hydroxy-.gamma.-butyrolactone expressed by the following Formula 1 and more particularly, to a process that enables preparing optically pure (S)-3-hydroxy-.gamma.-butyrolactone economically in large quantities, by: