(+)-1-Deoxy-6-epi-castanospermine was asymmetrically synthesized in ten steps from α-furfuryl amine derivative 6 in 2.9% overall yield. The kinetic resolution
Nine C2-symmetric chiral disulfonamldes were designed and synthesized from L-valine, L-phenylalanine and L-leucine respectively via one-pot ring opening of azi