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. 07, 2017
Filed:
Dec. 23, 2013
Applicant:
Kbp Biosciences Co., Ltd., Jinan, Shandong, CN;
Inventors:
Assignee:
KBP BIOSCIENCES CO., LTD., Jinan, Shandong Province, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/04 (2006.01); C07D 215/20 (2006.01); C07D 215/60 (2006.01); C07D 215/48 (2006.01); C07C 255/50 (2006.01);
U.S. Cl.
CPC ...
C07D 471/04 (2013.01); C07C 255/50 (2013.01); C07D 215/20 (2013.01); C07D 215/48 (2013.01); C07D 215/60 (2013.01);
Abstract
The present invention belongs to the technical field of medicines, and relates to a crystal form of a compound used as a mineralocorticoid receptor antagonist and a preparation method therefor, and in particular, to a method for preparing a compound 2-chloro-4-[(3S,3aR)-3-cyclopentyl-7-(4-hydroxypiperidin-1-carbonyl)-3,3a,4,5-tetrahydro-2H-pyrazolo[3,4-f]quinolin-2-yl]benzonitrile of formula (1); a crystal form thereof, a preparation method for the crystal form, and the use of the crystal form in the preparation of drugs for the treatment and/or prevention of renal injury or cardiovascular diseases.