Synthesis of 7-thiaprostaglandin E1 congeners: Potent inhibitors of platelet aggregation.
作者:TOSHIO TANAKA、NORIAKI OKAMURA、KIYOSHI BANNAI、ATSUO HAZATO、SATOSHI SUGIURA、KENJI MANABE、FUKUYOSHI KAMIMOTO、SEIZI KUROZUMI
DOI:10.1248/cpb.33.2359
日期:——
Novel 7-thiaprostaglandin E1 derivatives and congeners were synthesized by a stepwise three-component coupling process, which involves the introduction of α-side chains (thiols) and β-side chains (organocopper reagents) into (R)-4-tert-butyldimethylsilyloxy-2-cyclopentenone. Several acid derivatives of 7-thiaprostaglandin E1 were also prepared either by enzymatic or by chemical methods. The stereochemistry of these products was assigned on the basis of the results with chiral protected cyclopentenones and chiral ω-side chains. Some of these 7-thiaprostaglandin E1 congeners were found to exhibit more potent platelet aggregation-inhibitory activity than PGE1. The structure-activity relationship of these congeners is discussed.
合成了一系列新型的7-硫前列腺素E1衍生物和同系物,采用一步法的三组分耦合过程,该过程涉及向(R)-4-叔丁基二甲基硅氧基-2-环戊烯酮引入α侧链(硫醇)和β侧链(有机铜试剂)。还通过酶法或化学方法制备了几种7-硫前列腺素E1的酸衍生物。这些产物的立体化学基于对手性保护的环戊烯酮和手性ω侧链的结果进行分配。发现某些7-硫前列腺素E1同系物的血小板聚集抑制活性比PGE1更强。文中讨论了这些同系物的结构-活性关系。