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:
Oct. 03, 2000
Filed:
Jul. 30, 1998
Applicant:
Inventors:
Hiromichi Ohta, Tokyo, JP;
Takeshi Sugai, Yokohama, JP;
Takeshi Ishii, Toyonaka, JP;
Satoshi Mitsuda, Takarazuka, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ;
U.S. Cl.
CPC ...
435 87 ; 435 89 ; 435 85 ; 435 72 ; 435197 ; 435 84 ;
Abstract
There is disclosed a process for producing a nucleoside derivative of the formula [I]: ##STR1## characterized by contacting 2',3',5'-O-triacylribonucleoside derivative of the formula [II]: ##STR2## with an ester hydrolase: (i) capable of regio-selectively deacylating the acyl group at 5'-O-position in the formula [II] above, and