| 摘要 |
<p>A compound of the general formula [I]: <CHEM> wherein R1 represents a higher alkyl group or an N-(higher alkyl)carbamoyl group, R2 represents hydrogen, a lower alkyl group, an acyl group having at least three carbon atoms, an N-(lower alkyl)carbamoyl group, an N-(lower alkyl)thiocarbamoyl group or a benzyl group, R represents a primary, secondary or tertiary amino group or a quaternary ammonium group, x is l or 2, y is 0, 1 or 2. and z is an integer of 2-l0, or a pharmaceutically acceptable salt thereof. The novel substances have both anti-tumor activity and platelet activating factor-inhibiting property, and they are effective as an anti-tumor agent without circulatory trouble.</p> |
