group of 3-(3-hydroxyl)propylidene-2,5-piperazinedione to 3-position and the same substitution of 3-(3-hydroxy)propyl derivative to 6-position gave the corresponding 3-spiro- and 3,6-bridged 2,5-piperazinediones, respectively.
分子内将3-(3-羟基)亚丙基-2,5-
哌嗪二
酮的羟基加至3-位,并将3-(3-羟基)丙基衍
生物相同的取代至6-位,得到相应的3-螺-和3,6-桥联的2,5-
哌嗪二
酮。