Abstract
Threo-2-hydroxy-3-aryl-(2-nitroarylthio) propionates (III-β) were obtained by the reaction of 2-nitrothiophenols (I) and arylglycidic esters (II) in the presence of catalytic amount of NaHCO3. Conversion of III-β to 1, 5-benzothiazepine derivatives (VI-β), the configuration of which was 2, 3-trans, was satisfied by the similer method as that in our previous paper.
