N1,N5-双-Boc-亚精胺 、
2,3,4,6-tetra-O-Acetyl-β-D-galactopyranosyl isothiocyanate 以
甲苯 为溶剂,
反应 8.0h,
以83%的产率得到acetic acid 4,5-diacetoxy-2-acetoxymethyl-6-(3-{3-[tert-butoxycarbonyl-(4-tert-butoxycarbonylamino-butyl)-amino]-propyl}-thioureido)-tetrahydro-pyran-3-yl ester