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:
Jan. 22, 2019
Filed:
Mar. 25, 2016
Boston Biomedical, Inc., Cambridge, MA (US);
Sumitomo Dainippon Pharma Co., Ltd., Osaka-shi, Osaka, JP;
Hitoshi Ban, Osaka, JP;
Seiji Kamioka, Osaka, JP;
Yusuke Sawayama, Osaka, JP;
Chiang Jia Li, Cambridge, MA (US);
BOSTON BIOMEDICAL, INC., Cambridge, MA (US);
SUMITOMO DAINIPPON PHARMA CO., LTD., Osaka-shi, Osaka, JP;
Abstract
The present invention provides compounds represented by formula (1A), or pharmaceutically acceptable salts. Compounds represented by formula (1A), or pharmaceutically acceptable salts thereof, wherein Aand Aare identical or different, and each independently —C(═O) B, —C(═O)CRRB, —COB, —C(═S)OB, —CONRB, —C(═S)NRB, a hydrogen atom, or the like, wherein Aand Aare not both hydrogen atoms, wherein B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B), wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; Ris a hydrogen atom or the like; R, R, R, and Rare identical or different, and each independently a hydrogen atom or the like; and Ris alkyl. wherein * denotes a bonding position.