phenyl 2-O-benzoyl-3,4-di-O-benzyl-6-O-chloroacetyl-1-thio-α-L-idopyranoside 、
[(2S,3R,4R,5S,6R)-4-Benzyloxy-5-hydroxy-2-methoxy-6-(4-methoxy-phenoxymethyl)-tetrahydro-pyran-3-yl]-carbamic acid benzyl ester 在
DMTST 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以71%的产率得到methyl (2-O-benzoyl-3,4-di-O-benzyl-6-O-chloroacetyl-α-L-idopyranosyl)-(1->4)-3-O-benzyl-2-benzyloxycarbonylamino-2-deoxy-6-O-(4-methoxy)phenyl-α-D-glucopyranoside