| 摘要 |
<p>Cpds. of general formulae (I) and (II) R1=H, Me or Et; R2=H, F, Cl or Br; R3=H or (2-5C) alkanoyl (Excluding II, R1=R2=R3=H) Analgesics, antiphlogistics, and antipyretics. Dose 1-80 mg/kg. p-Aminophenylethylalcohol (6.0 g), 2,5-dimethoxytetrahydrofuran (5.8 g), and AcOH (70 ml), were refluxed 1 hr., evapd. in vac. and distilled at 0.01 mm. from an air-bath-at 160-180 deg. The distillate was refluxed 4 hr. with 2N-NaOH (30 ml) and EtOH (50 ml), evapd. in vac., stirred with H2O (20 ml), filtered and dried, giving I (R1=R2=R3=H) m.p 98-100 deg.</p> |
