Some diketopiperazine derivatives (3a-f, 4a-f, and 5a-c) related to natural products (1 and 2) have been prepared and evaluated for their inhibition of platelet aggregation induced by platelet-activating factor (PAF).
                                    一些与
天然产物(1和2)相关的二酮
哌嗪衍
生物(3a-f、4a-f和5a-c)已经制备完成,并评估了其对血小板活化因子(PAF)诱导的血小板聚集的抑制作用。