(S)-1-Aryl-2-sulfonyloxy-1-alkanone acetals, prepared from natural ethyl (S)-lactate or (S)-valine (chiral sources) by the use of a Grignard reaction, were rearranged under hydrolytic conditions in the presence of a base to give (S)-2-arylalkanoic esters which, in general, showed much higher pharmacological activities than their antipodes.
(S)-1-芳基-2-
磺酸酯-1-烷酮
缩醛,由天然的乙基(S)-
乳酸或(S)-缬
氨酸(手性来源)通过格氏反应制备,在碱的存在下在
水解条件下重新排列,生成了(S)-2-芳基烷酸酯,这些酯的药理活性通常明显高于其对映体。