FIELD: chemistry.
SUBSTANCE: invention relates to compounds of formula (I) or pharmaceutically acceptable salts thereof:
,
where A is a single bond or oxygen; R1 is selected from a group comprising hydrogen; -C(O)OC1-10alkyl and -C(O)OC1-10alkyl-phenyl; and R2 is selected from a group comprising C1-10alkyl, (CH2)n-phenyl, adamantinyl, adamantinyl, C1-10alkyl substituted with C3-10carbocycle, and C3-10carbocycle, where n assumes values from 0 to 4.
EFFECT: novel compounds and salts thereof which can be used in preventing or treating Parkinson's disease are obtained and described.
6 cl, 105 ex, 3 tbl, 2 dwg
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