| 摘要 |
<p>Novel cpds. of formula (where R1 R2 R3 and R4 = lower alkyl or R1 and R2 and/or R3 and R4 tog. with the adjoining C - atom form a cycloalkyl ring, X = H, (substd.) alkyl, alkenyl, alkynyl, (substd.) aralkyl, acyl, halogen, -O, -NO or -NR5R6, where R5 and R6 = H, (substd.) alkyl, or R5 can additionally = acyl or R5 and R6 tog. with the adjoining N - atom can form a ring). or their salts with org. or inorg. acids. They may be prepd. by ring closure of sulphones with NH3 or a prim. amine NH2X.</p> |
