Intramolecular Diels-Alder cycloaddition of enantiomerically enriched triene 16 could be attained under thermal conditions resulting in the formation of octahydronaphthalene derivatives 17–20, one of which wn converted into PI-201 (1), a new platelet aggregation inhibitor.
对映体富集的
三烯16的分子内Diels-Alder环加成反应可在热条件下完成,从而形成八氢
萘衍
生物17-20,其中一种转变为
PI-201(1),这是一种新的血小板聚集
抑制剂。