← EPO Patent Bulletin

CRYSTAL FORM OF 3-HYDROXY-5-PREGNANE-20-ONE DERIVATIVE, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Publication EP4289856A1 Kind: A1 Mar 18, 2026

Applicants

TWi Biotechnology, Inc.

Inventors

LIU, Fei, WU, Gang, LI, Xianchao, WANG, Xiaobo, LIU, Jinwei

IPC Classifications

C07J 7/00 20060101AFI20250520BHEP A61K 31/57 20060101ALI20250520BHEP A61P 25/00 20060101ALI20250520BHEP C07J 41/00 20060101ALI20250520BHEP

Designated States

AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR