Addition of allyl bromide (5) to N-benzyl-N-carbobenzoxy-O-tert-butyldimethyl-D-serinal (4) afforded with high diastereoselectivity anti-adduct 6 which subsequently transformed into(2R,4S,5R)-1,3-dideoxynojirimycin (1). (C) 1997 Elsevier Science Ltd.
Addition of allyl bromide (5) to N-benzyl-N-carbobenzoxy-O-tert-butyldimethyl-D-serinal (4) afforded with high diastereoselectivity anti-adduct 6 which subsequently transformed into(2R,4S,5R)-1,3-dideoxynojirimycin (1). (C) 1997 Elsevier Science Ltd.