2D-(2,4/3,5)-2,3,4-tri(benzyloxy)-5-(trityloxymethyl)-cyclohexanone 、
63-amino-11,61-anhydro-21,31,22,32,62,23,33-hepta-O-benzyl-43,63-dideoxy-β-maltotriose 在
4 A molecular sieve 、 sodium cyanoborohydride 作用下,
以30%的产率得到O-<2,3-di-O-benzyl-4,6-dideoxy-4-<1D-(1,2,4/3,5)-2,3,4-tris(benzyloxy)-5-(trityloxymethyl)cyclohexyl>amino-α-D-glucopyranosyl>-(1->4)-O-(2,3,6-tri-O-benzyl-α-D-glucopyranosyl)-(1->4)-1,6-anhydro-2,3-di-O-benzyl-β-D-glucopyranose