METHOD OF SYNTHESIS OF CYCLOALKYLGLUTARAMIDE DERIVATIVES OR THEIRS PHARMACEUTICALLY ACCEPTABLE SALTS Russian patent published in 1994 - IPC

FIELD: organic chemistry. SUBSTANCE: product: derivatives of cycloalkylglutaramide of the general formula , where A - (CH₂)₄; R′ - H, Ru-R⁴-H, C₆H₅CH₂ and other; Y - unbranched (C₁-C₃)-alkylene; R² - H, C₆H₅ and other, or theirs pharmaceutically acceptable salts. Reagent 1: . Reaction conditions: one or both protective groups are removed (R¹⁷ and R¹⁸), and any other protective groups in radicals R² and R³ are also removed following by product isolation or its conversion to the pharmaceutically acceptable salt. EFFECT: improved method of synthesis.