1-HEXYL-4- PHENYL-4-BIPERIDINE CARBOXAMIDE N-SUBSTITUTED DERIVATIVE OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, AND PROCESS FOR PREPARING THEREOF Russian patent published in 1995 - IPC

FIELD: organic chemistry. SUBSTANCE: 1-hexyl-4-phenyl 4- piperidinecarboxamide N-substituted derivative of the formula: CH₂CH₂N(C₄H₉)CH₂CH₂C(C₆H₅)CONR₁R₂ wherein R₁ and R₂ are the same as different and each represents C₁-C₄-alkyl, or R₁ and R₂ together form a (CH₂)₅ chain, or one of R₁ and R₂ is hydrogen and the other is C₁-C₄-alkyl. Reagent 1: 1-hexyl- 4-phenyl-4-piperidinylcarboxylic acid ethyl ester. Reagent 2: R₁NH₃. Reaction conditions: a compound of the general formula is obtained wherein R₂ is hydrogen. EFFECT: improved properties of the title compounds. 6 cl, 2 tbl