摘要 |
FIELD: organic chemistry. SUBSTANCE: product: compound of the formula (I)where Rand Rmean independently hydrogen, -CH,-alkyl) orwhere Ar - optional substituted phenyl; Ris pyrrolidino-, hexamethyleneimino- or piperidino-group, or pharmaceutically acceptable salt or solvate of this compound. EFFECT: improved method of synthesis, enhanced effectiveness of treatment. |