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. 29, 2022
Filed:
May. 04, 2018
Applicant:
Suzhou Connect Biopharmaceuticals, Ltd., Jiangsu, CN;
Inventors:
Assignee:
SUZHOU CONNECT BIOPHARMACEUTICALS, LTD., Jiangsu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 413/10 (2006.01);
U.S. Cl.
CPC ...
C07D 413/10 (2013.01); C07B 2200/13 (2013.01);
Abstract
Disclosed in the present application are a salt form and a crystal form of an S1P1 receptor mediated disease or symptom drug 1-{2-fluoro-4-[5-(4-isobutylphenyl)-1,2,4-oxadiazole-3-yl]benzyl}-3-azetidinecarboxylic acid (formula A). Also disclosed in the present invention are a preparation method for the salt form or the crystal form, a pharmaceutical composition of the salt form or the crystal form, and use of the salt form or the crystal form in the preparation of a drug for treating and/or preventing an S1P1 receptor mediated disease or symptom.