| abstract |
The present invention is directed to piperidyl-2,6-dione derivatives of formula (I) and inorganic or organic acid salts thereof, methods of producing these compounds, and the use of the compounds as active ingredient in medicine to inhibit cells from releasing TNFα: (I) Wherein, n represents 1, 2, 3, 4, 5, or 6; R1 represents F, Cl, Br, C1-4alkyl, OH, OC1-4alkyl, NO2, NHC (O) C1-4alkyl, NH2, NH (C1-4alkyl), N (C1-4alkyl)2, there are 1-4 R1 and each R1 may be the same or different; R2 represent OR3, NR3R4, N(R3)COR4, O2CR5, wherein R3 or R4 represents H or C1-4alkyl, R5 represents CHR6NR7R8, CHR6NR9C(O)CHR10NR7R8, heterocycle W or CHR6NR9C(O)W, where R6, R9, R10 independently represents H or C1-4alkyl, R7 and R8 independently represents H or C1-4alkyl or R7 and R8 together represent 1,3-propilidene, 1,4-butylidene, 1,5-pentamethylene, 1,6-hexamethylene, W represents four-, five-, six-, seven-, or eight-membered saturated or unsaturated heterocycles. |