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. 27, 2025
Filed:
Nov. 07, 2019
Applicant:
Chugai Seiyaku Kabushiki Kaisha, Tokyo, JP;
Inventor:
Takenori Ishizawa, Kanagawa, JP;
Assignee:
CHUGAI SEIYAKU KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 269/04 (2006.01); C07C 227/18 (2006.01); C07C 269/06 (2006.01); C07C 271/16 (2006.01); C07C 271/22 (2006.01); C07D 291/04 (2006.01); C07D 291/06 (2006.01); C07D 307/42 (2006.01); C07D 333/16 (2006.01);
U.S. Cl.
CPC ...
C07C 269/04 (2013.01); C07C 227/18 (2013.01); C07D 291/04 (2013.01); C07D 291/06 (2013.01); C07D 333/16 (2013.01);
Abstract
It was discovered that a cyclic sulfamidate can be produced by reacting an amino acid derivative with a cyclization reagent. In addition, it was discovered that an O-substituted serine derivative can be produced by reacting a cyclic sulfamidate with an alcohol.