Aryl-assisted halogen exchange and rearrangements of 2-bromo-1-chloro-3-arylpropanes and 1-bromo-3-chloro-2-arylpropanes. Evidence for a competitive bromine-assisted pathway in the case of 1,2-dibromo-3-arylpropanes
Abstract The combination of diphenyl sulfoxide and oxalyl chloride was used to accomplish the dichlorination of olefins, in which chlorodiphenylsulfonium salt generated in situ was proposed to be the real active species as a chloronium ion source. Graphical Abstract
Method for making intermediates useful in synthesis of retroviral protease inhibitors
申请人:G.D. SEARLE & CO.
公开号:EP0855388A2
公开(公告)日:1998-07-29
A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a cyanohydrin from a chiral alpha amino aldehyde.
本文介绍了一种易于大规模制备羟乙基脲类手性 HIV 蛋白酶抑制剂的中间体合成方法。该方法包括从手性α-氨基醛中形成氰醇。
Method of preparing intermediates useful in synthesis of retroviral protease inhibitors
申请人:G.D. Searle & Co.
公开号:US20020161234A1
公开(公告)日:2002-10-31
A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a diastereoselective epoxide from a chiral alpha amino aldehyde.
本文介绍了一种易于大规模制备羟乙基脲类手性 HIV 蛋白酶抑制剂的中间体合成方法。该方法包括利用手性α-氨基醛形成非对映选择性环氧化物。
Method for preparing intermediates useful in synthesis of retroviral protease inhibitors
申请人:G.D. Searle & Co.
公开号:US20030225285A1
公开(公告)日:2003-12-04
A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a diastereoselective epoxide from a chiral alpha amino aldehyde.
本文介绍了一种易于大规模制备羟乙基脲类手性 HIV 蛋白酶抑制剂的中间体合成方法。该方法包括利用手性α-氨基醛形成非对映选择性环氧化物。
Preparation of aminoepoxides from aminoaldehydes and an in situ formed halomethyl organometallic reagent