Synthesis of Peptidosulfinamides and Peptidosulfonamides: Peptidomimetics Containing the Sulfinamide or Sulfonamide Transition-State Isostere
作者:Wilna J. Moree、Gijs A. van der Marel、Rob J. Liskamp
DOI:10.1021/jo00121a038
日期:1995.8
Synthetic routes are described toward the preparation of alpha- as well as beta-substituted aminoethanesulfinyl chlorides, starting from either an aldehyde or from an amino acid derivative. The sulfinyl chlorides are used as building blocks for the preparation of homochiral alpha- or beta- substituted sulfinamide and sulfonamide transition-state isosteres. The methodology has been applied to the synthesis of peptidosulfonamide peptidomimetics such as a hapten needed for the generation of antibodies and potential HIV protease inhibitors. In addition, the beta-substituted aminoethanesulfinyl chlorides were used as building blocks for the preparation of a tetrapeptidosulfonamide, which can be considered as a biopolymer mimetic, employing a repetition of a cycle of three reactions: coupling of the sulfinyl chloride to the N-terminus of the growing peptidosulfonamide, oxidation to the sulfonamide, and deprotection of the N-terminus.