| 摘要 |
Title compds. (I; R1,R2 = H, lower alkyl ; R3 = lower alkenyloxy, mercapto, lower alkylthio, substituted-phenyl and hetero group having mono-or disubstituted sulfamoyl group ' R4,R5 = OH; X = O,-S) useful as muscle relaxant (no data) were prepd. by catalytic redn., redn. with alk. metal aluminium hydride or alk. metal borohydride, and acid-metal redn. of II.
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