4-benzoyl-N-{2-chloro-5-[3,4-dihydroxy-6-hydroxymethyl-5-(3,4,5-trihydroxy-6-hydroxymethyl-tetrahydropyran-2-yloxy)tetrahydropyran-2-yloxymethyl]phenyl}benzamide 、
苯甲醛二甲缩醛 以66%的产率得到4-benzoyl-N-{5-[(4',6'-O-benzylidene-β-D-maltosyl)oxymethyl]-2-chlorophenyl}benzamide