| 摘要 |
<p>Novel compounds of formula (I), wherein R1 represents C¿10-30? alkyl or alkylcarbonyl, R?2¿ represents hydrogen, hydroxy, alkoxy, aralkyloxy, acyloxy, acylamino or a group represented by formula (II), (wherein W represents oxygen or sulfur, and R?4 and R5¿ each represents hydrogen or alkyl or, when taken together, R?4 and R5¿ form a ring together with the adjacent nitrogen atom), R3 represents an alkylene chain, one of X and Y represents an oxygen or sulfur atom and the other represents an optionally substituted imino group, and Z represents an optionally substituted amino group or ammonio group optionally forming a ring, and salts thereof show the effect of depressing PAF and are useful for prophylaxis and treatment of various circulatory troubles and allergic diseases and useful as oncostatic agents.</p> |
