Synthesis and platelet aggregation-inhibitory activities of novel 3-(2-oxopropylidene)azetidin-2-one derivatives. I.
作者:Yutaka KAWASHIMA、Masakazu SATO、Yuuichi HATADA、Jun GOTO、Yosimoto NAKASHIMA、Katsuo HATAYAMA、Shiroshi SHIBUYA
DOI:10.1248/cpb.38.393
日期:——
aggregation induced by adenosine diphosphate or collagen. Ring-expanded homologous derivatives and an acyclic analogue of 12 were also synthesized and tested for the biological activities. The azetidin-2-one skeleton bearing a 2-oxoalkylidene moiety at the 3 position was found to be essential for the platelet aggregation inhibitory activities of these compounds.
用10%Pd / C处理(E)-3-(2-羟亚丙基)-4-甲基-1-苯基氮杂环丁烷-2-酮(11)得到(E)-(12),(Z)-3-( 2-氧代亚丙基)-4-甲基-1-苯基氮杂环丁烷-2-一(13),3,4-顺式(14a)和3,4-反式-3-(2-氧代丙基)-4-甲基-1-苯基氮杂环丁烷-2-酮(14b)。其中,发现12和13显示出对二磷酸腺苷或胶原诱导的富含兔血小板的血浆聚集的有效抑制活性。还合成了环扩展的同源衍生物和12的无环类似物,并测试了其生物活性。发现在3位带有2-氧代亚烷基部分的氮杂环丁烷-2-酮骨架对于这些化合物的血小板聚集抑制活性是必不可少的。