Convenient Route to Both Enantiomers of a Highly Functionalized Trans-Disubstituted Cyclopentene. Synthesis of the Carbocyclic Core of the Nucleoside BCA
作者:Shyamapada Banerjee、Sarita Ghosh、Saikat Sinha、Subrata Ghosh
DOI:10.1021/jo0502504
日期:2005.5.1
stereocontrolled synthesis of a diene with two syn-disposed substituents from a (R)-(+)-glyceraldehyde derivative, ring-closing metathesis of this diene, and functional group manipulation of the resulting trans-disubstituted cyclopentene. One of the enantiomers of the cyclopentenol thus obtained has been converted to an amino cyclopentene, the carbocyclic core of the nucleoside (−)-BCA, a potent inhibitor of HIV
描述了高度官能化的环戊烯醇衍生物的两种对映异构体的合成,这是大量生物活性化合物的通用组成部分。关键步骤涉及从(R)-(+)-甘油醛衍生物立体控制合成具有两个同位取代基的二烯,该二烯的闭环易位以及所得反式-二取代的环戊烯的官能团操纵。如此获得的环戊烯醇的对映异构体之一已转变为氨基环戊烯,即核苷(-)-BCA的碳环核心,一种有效的HIV逆转录酶抑制剂。