| 摘要 |
<p>(A) Cpds. of general formulae (I) and (II): where Y = S, SO, or SO2 (all claimed) or O (not claimed), pref. S. R = aryl, claims X-substd. Ph, furyl, thienyl, pyridyl, or naphthyl, or pref. Ph R1 = H, alkyl (opt. substd. by halogen), aralkyl (claims only Ph CH2 and X -substd.), allyl, propargyl, cinnamyl, or cycloalkylalkylene (claims only cyclopropyl) X = H, lower alkyl, lower alkoxy, NH2 (and dialkyl substd.), halogen, lower alkylthio, OH CN, NO2, or CF3, pref.H. R2, R3 = H, or together as oxa n = 1-4, claims only 1-2 A = lower alkylene (pref. propylene or esp. ethylene) Hal = halogen.</p> |
