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:
Nov. 16, 1999
Filed:
Feb. 27, 1998
Applicant:
Inventors:
Masanori Mizuno, Ibaraki, JP;
Takayuki Shioiri, Aichi, JP;
Assignee:
Eisai Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H / ; C07H / ;
U.S. Cl.
CPC ...
536124 ; 536 291 ; 536 55 ; 552 10 ;
Abstract
A process for the preparation of azide derivatives useful as drugs, perfumes or intermediates of dyes by reacting an alcohol derivative with di-p-nitrophenyl phosphorazidate in the presence of 1,8-diazabicyclo[5.4.0]-7-undecene.