FIELD: chemistry.
SUBSTANCE: present invention pertains to methods of obtaining compounds V and VI 
, methods of racemation of optically pure or optically enriched compounds I and II 
, intermediate product VII 
, used in the process of obtaining I and II compounds. The invention also relates to methods of making compounds with general formula VIII 
and IX 
.
EFFECT: method of obtaining and racemation of useful biologically active compounds distinguished by simple design, availability and cheapness of initial reagents and high output.
15 cl, 5 ex
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Year |
Author |
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