作者:Yong-Li Zhong、Shane W. Krska、Hua Zhou、Robert A. Reamer、Jaemoon Lee、Yongkui Sun、David Askin
DOI:10.1021/ol802604v
日期:2009.1.15
An efficient synthesis of HIV integrase inhibitor (S)-(−)-1 via a unique asymmetric hydrogenation of a mixture of imines/enamine 5a−5b/5c is described. Hydrogenation of the imines/enamine by a Rh(I)−Josiphos complex afforded 6 in 90% yield and 90% ee. Amide formation completed the synthesis of 1 in 58% overall yield from 2, which is readily available from 3,4-dihydro-2H-pyran in a seven-step sequence
描述了通过亚胺/烯胺5a - 5b / 5c混合物的独特不对称氢化有效合成HIV整合酶抑制剂(S)-(-)- 1的方法。Rh(I)-Josiphos络合物对亚胺/烯胺的氢化反应可得到90%收率和90%ee的收率6。酰胺形成完成的合成1在58%的总收率从2,这是容易获得的由3,4-二氢-2- ħ吡喃在七步序列。氘标记研究表明,不对称氢化主要通过烯胺互变异构体进行。