Patent number: 9669015
Abstract: This invention is directed to derivatives of piperidine-2,6-dione, or their organic or inorganic salts thereof, a methods of synthesis of these derivatives, and their application as active pharmaceutical ingredient as inhibitors of TNF? releasing in cells, the derivative of piperidine-2,6-dione being of the general formula (I): wherein n represents 1, 2, 3, 4, 5 or 6; R1 represents from one to four of the same or different substituents selected from F, Cl, Br, C1-4 alkyl, OH, OC1-4 alkyl, NO2, NHC(O)C1-4 alkyl, NH2, NH(C1-4 alkyl), N(C1-4 alkyl)2; R2 represents OR3, NR3R4, N(R3)COR4, O2CR5; R3 and R4 represent independently and at each occurrence H or C1-4 alkyl; R5 represents CHR6NR7R8, CHR6NR9C(O)CHR10NR7R8, a heterocycle W or CHR6NR9C(O)W; R6, R9, R10 represent independently and at each occurrence H, or C1-4 alkyl; R7 and R8 represent independently and at each occurrence H, C1-4 alkyl, or R7 and R8 taken together represent 1,3-propylene, 1,4-butylene, 1,5-pentylene, or 1,6-hexylene; W represents four-m
Type:
Grant
Filed:
June 16, 2015
Date of Patent:
June 6, 2017
Assignee:
Tianjin Hemay Bio-Tech Co., Ltd.
Inventor:
Hesheng Zhang
Patent number: 9546164
Abstract: The invention provides compounds having the general formula I: and pharmaceutically acceptable salts thereof, wherein the variables RA, RAA, subscript n, ring A, X2, L, subscript m, X1, R1, R2, R3, R4, R5, and RN have the meaning as described herein, and compositions containing such compounds and methods for using such compounds and compositions.
Type:
Grant
Filed:
January 22, 2015
Date of Patent:
January 17, 2017
Assignees:
GENENTECH, INC., XENON PHARMACEUTICALS INC.
Inventors:
Jean-Christophe Andrez, Paul Robert Bichler, Chien-An Chen, Sultan Chowdhury, Shannon Marie Decker, Christoph Martin Dehnhardt, Thilo Focken, Michael Edward Grimwood, Ivan William Hemeon, Qi Jia, Jun Li, Zhiguo Liu, Daniel F. Ortwine, Brian Safina, Daniel Sutherlin, Tao Sheng, Shaoyi Sun, Andrew D. White, Michael Scott Wilson, Alla Yurevna Zenova, Jiuxiang Zhu