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. 27, 2012
Filed:
Mar. 10, 2009
Shigeyoshi Nishino, Yamaguchi, JP;
Kenji Hirotsu, Yamaguchi, JP;
Hidetaka Shima, Yamaguchi, JP;
Takashi Harada, Yamaguchi, JP;
Hiroyuki Oda, Yamaguchi, JP;
Shigeyoshi Nishino, Yamaguchi, JP;
Kenji Hirotsu, Yamaguchi, JP;
Hidetaka Shima, Yamaguchi, JP;
Takashi Harada, Yamaguchi, JP;
Hiroyuki Oda, Yamaguchi, JP;
Ube Industries, Ltd., Ube-shi, Yamaguchi, JP;
Abstract
A 4-aminoquinazoline derivative can be obtained by the steps of reacting quinazolin-4-one or its derivative with a chlorinating agent in a first organic solvent in the presence of an organic base, and subsequently reacting the reaction product with an amine compound represented by the formula R—NH—R(each of Rand Rrepresents hydrogen or an optionally substituted hydrocarbyl group) in the presence of a second organic solvent.