A Photochemical Route to Optically Active Hexahydro-4<i>H</i>-furopyranol, a High-Affinity P2 Ligand for HIV-1 Protease Inhibitors
作者:Arun K. Ghosh、William L. Robinson
DOI:10.1021/acs.joc.9b01361
日期:2019.8.2
We describe here the syntheses of optically pure (3aS,4S,7aR)-hexahydro-4H-furo[2,3-b]pyran-4-ol and (3aR,4R,7aS)-hexahydro-4H-furo[2,3-b]pyran-4-ol. These stereochemically defined heterocycles are important high-affinity P2 ligands for a variety of highly potent HIV-1 protease inhibitors. The key steps involve an efficient Paternò-Büchi [2 + 2] photocycloaddition, catalytic hydrogenation, acid-catalyzed
我们在这里描述了光学纯的(3aS,4S,7aR)-六氢-4H-呋喃[2,3-b]吡喃-4-醇和(3aR,4R,7aS)-六氢-4H-呋喃[2, 3-b]吡喃-4-醇。这些立体化学定义的杂环对于各种高效的HIV-1蛋白酶抑制剂而言都是重要的高亲和力P2配体。关键步骤涉及有效的Paternò-Büchi[2 + 2]光环加成,催化氢化,酸催化的环化反应以形成外消旋配体醇,以及固定化的Amano脂肪酶PS-30的酶促拆分。获得具有高对映体纯度的旋光配体(-)-6和(+)-6。对映体(-)-6已转化为有效的HIV-1蛋白酶抑制剂3。