3,4,4-TRISUBSTITUTED PIPERIDINYL-N-ALKYLCARBOXYLATES AND INTERMEDIATE COMPOUNDS, METHOD OF THEIR SYNTHESIS, PHARMACEUTICAL COMPOSITION
FIELD: organic chemistry, pharmacy. SUBSTANCE: invention describes the novel crystalline ester of (alphaS, 3R, 4R)-4-(3-hydroxyphenyl)-3,4-dimethyl-alpha-(phenyl- -methyl)-1-piperidine propionic acid of the formula where R is C1-C6-alkyl; Z - the group taken among hydrochloride, hydrobromide, succin...
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