This invention relates to a method of effecting immunosuppression in a patient in need thereof comprising administering an effective amount of a compound of the formula (1) ##STR1## wherein the hydroxy substituent on the cyclopentenyl ring is in the CIS configuration relative to the bicyclic substituent, Y.sub.3, Y.sub.7, Y.sub.8 and Y.sub.9 are each independently nitrogen or a CH group, Q is NH.sub.2, halogen or hydrogen, and Z is hydrogen, halogen, or NH.sub.2 ; or a pharmaceutically-acceptable salt thereof.
本发明涉及一种在需要免疫抑制的患者中实现免疫抑制的方法,包括给予有效量的式(1)化合物 ##STR1## 其中
环戊烯环上的羟基取代基相对于双环取代基Y.sub.3、Y.sub.7、Y.sub.8和Y.sub.9中的每一个独立地为氮或CH基团,Q为NH.sub.2、卤素或氢,Z为氢、卤素或NH.sub.2;或其药学上可接受的盐。