This invention relates to novel trans cyclopentanyl purine analogs of the formula (1)
wherein
the substituent in the 3-position on the cyclopentanyl ring is in the Trans configuration relative to the bicyclic substituent,
Y₃, Y₅ Y₇, Y₈ and Y₉ are each independently nitrogen or a CH group,
R is a hydrogen, a C₁-C₇ alkyl acyl or aryl acyl,
Q is NH₂, halogen or hydrogen,
Z is hydrogen, halogen, or NH₂;
or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
本发明涉及式 (1) 的新型反式环戊基
嘌呤类似物
其中
环戊烷环上 3 位的取代基相对于双环取代基为反式构型、
Y₃、Y₅、Y₇、Y₈ 和 Y𠢙 各自独立地为氮或 CH 基团、
R 是氢、C₁-C₇ 烷酰基或芳酰基、
Q 是 NH₂、卤素或氢、
Z 是氢、卤素或 NH₂;
或其药学上可接受的盐,以及它们作为
免疫抑制剂的用途。