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:
Jun. 23, 2020
Filed:
Jul. 26, 2017
Tokuyama Corporation, Yamaguchi, JP;
Fumiaki Iwasaki, Yamaguchi, JP;
Hiromasa Yamamoto, Yamaguchi, JP;
Kenji Tanaka, Yamaguchi, JP;
Masahiko Seki, Yamaguchi, JP;
Yoshiki Seike, Yamaguchi, JP;
Tokuyama Corporation, Yamaguchi, JP;
Abstract
In the method, a trione compound represented by the following formula (1) is (i) reduced by NaAlH(OCHCHOCH)and subsequently further reduced by a metal borohydride salt, or (ii) reduced by calcium borohydride, thereby producing an amide alcohol compound represented by the following formula (3) (wherein, Rand Rmay be the same or different and each represents a hydrogen atom or a protecting group of an ureylene group; Rrepresents an alkyl group, an aralkyl group, or an aryl group; and each of R, R, and Rrepresents a hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom).