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:
May. 31, 2005
Filed:
Jul. 19, 2001
Applicants:
Katsumasa Harada, Ube, JP;
Shigeyoshi Nishino, Ube, JP;
Kenji Hirotsu, Ube, JP;
Shuji Yokoyama, Ube, JP;
Takeshi Takahashi, Ube, JP;
Hiroyuki Oda, Ube, JP;
Inventors:
Katsumasa Harada, Ube, JP;
Shigeyoshi Nishino, Ube, JP;
Kenji Hirotsu, Ube, JP;
Shuji Yokoyama, Ube, JP;
Takeshi Takahashi, Ube, JP;
Hiroyuki Oda, Ube, JP;
Assignee:
Ube Industries, Ltd., Ube, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07D209/34 ;
U.S. Cl.
CPC ...
Abstract
The present invention discloses a process for preparing 5-fluorooxindole represented by the formula (3):which comprises (A) a first step of cyclizing 2-(5-fluoro-2-nitrophenyl)malonic acid diester represented by the formula (1):