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. 21, 1993
Filed:
Aug. 27, 1992
Applicant:
Inventors:
Assignee:
Takeda Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
5483037 ;
Abstract
There are disclosed a compound of the general formula (I): ##STR1## wherein the group R--CO-- is an acyl group and its production. There is also disclosed a process for producing optically active (.+-.)-(3a.alpha., 4.alpha., 6a.alpha.)-tetrahydro-4-acetoxy-1,3-dibenzyl-1H-thieno[3,4-d]imidazol-2(3H )-one by using the compound (I). The compound (I) can be used as an intermediate for producing D-biotin which is useful as medicaments and feed additives for animals.