| 摘要 |
Oxazolidin-2-one derivs. of formula (I), their enantiomers, diastereomers and racemic mixts. are new. X = O, S or NR; R = H or 1-4C alkyl; R1 = H or Me; and R2 = R3O, CH=CHR4 or CH2CH2R4; R3 = H, benzyl (opt. substd. by halo, NO2 or methylenedioxy), methoxyethyl, butyl, 4,4,4-trifluorobutyl, 4,4,4-trifluoro-3-hydroxybutyl or 4,4,4-trifluorobut-2-enyl; R4 = H, Ph, 3,3,3-trifluoropropyl or 3,3,3-trifluoro-2-hydroxypropyl. One cpd. (I) is specifically claimed i.e. (S)-5-methoxymethyl-3-6-(4,4,4-trifluorobutoxy)-1,2-benzisoxazol-3-ylo xazolidin-2-one.
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