Enantioselective synthesis of 1,2-acetonide of (2S,3R)-3-N-boc-3-amino-4-phenyl-1,2-butanediol
摘要:
An efficient and stereocontrolled preparation of the (2S,3R)-1,2-acetonide 15, from hydrazone 10, leading to a (D)-phenylalaninol derivative, potentially useful for the design of HIV protease inhibitors, is described. Copyright (C) 1995 Elsevier Science Ltd
Enantioselective synthesis of 1,2-acetonide of (2S,3R)-3-N-boc-3-amino-4-phenyl-1,2-butanediol
摘要:
An efficient and stereocontrolled preparation of the (2S,3R)-1,2-acetonide 15, from hydrazone 10, leading to a (D)-phenylalaninol derivative, potentially useful for the design of HIV protease inhibitors, is described. Copyright (C) 1995 Elsevier Science Ltd
Formaldehyde dialkylhydrazones smoothly add to sugaraldehydes without any need of promoter or catalyst. α-Hydroxy dialkylhydrazones, which are obtained in good yields and high stereoselectivities, have been successfully transformed in cyanohydrins by treatment with magnesium monoperoxyphtalate (MMPP) and in O-protected α-hydroxy aldehydes by ozonolysis or HCl mediated hydrolysis. No racemization was