An Efficient and Practical Synthesis of the HIV Protease Inhibitor Atazanavir via a Highly Diastereoselective Reduction Approach
作者:Xing Fan、Yan-Li Song、Ya-Qiu Long
DOI:10.1021/op7001563
日期:2008.1.1
An efficient and practical synthesis of the HIV-1 protease inhibitor Atazanavir was developed by employing the diastereoselective reduction of ketomethylene aza-dipeptide isostere 10 as the key and final step. The high diastereoselectivity of the amino ketone reduction by lithium tri-tert-butoxyaluminum hydride in diethyl ether to afford the desired syn-1,2-amino alcohol structure was achieved by Felkin−Anh
通过采用非对映选择性还原酮亚甲基氮杂-二肽等排物10作为关键和最终步骤,开发了一种有效且实用的HIV-1蛋白酶抑制剂Atazanavir合成方法。通过Felkin -Anh控制,由于笨重和手性的N -(-)的结果,通过三叔丁氧基氢化铝锂在乙醚中还原氨基酮的高非对映选择性,从而得到所需的顺式1,2-氨基醇结构。甲氧基羰基) -升-叔-leucinyl部分为氮保护基团。两个关键中间体的联接器,ñ - (甲氧羰基) -升-叔亮氨酸酰化的苄基肼7和氯甲基酮9通过S N 2反应在我们优化的条件下以高收率提供了氨基酮10。我们的新方法提供了引入末的小号羟基基团和苄基肼和氯甲基酮与早期酰化Ñ - (甲氧羰基) -升-叔-亮氨酸,分别,其赋予高效率和容易纯化。