Pharmaceutical furazan derivatives prodn

摘要

Pharmaceutical furazan derivatives prodn. Cpds. possessing depressant, anticonvulsive and muscle-relaxing properties have the general formula: (in which R1 is a halogen, NO2, CF3, a lower alkoxy or alkylthio group, R2 is H, a lower alkyl or alkoxy group, R3 is H or a lower alkoxy group). These compounds can be produced by the Hoffman reaction from a compound of the formula: (in which R1, R2 and R3 are as above).