diphenylmethyl (4S,5R,6R)-5-acetamido-4-[2,3-bis(tert-butoxycarbonyl)-guanidino]-6-[(1R,2R)-2-hydroxy-1-methoxy-3-(octanoyloxy)-propyl]-5,6-dihydro-4H-pyran-2-carboxylate 、
三氟乙酸 以
二氯甲烷 为溶剂,
反应 5.0h,
以69%的产率得到5-acetamido-4-guanidino-9-O-octanoyl-2,3,4,5,7-pentadeoxy-7-methoxy-D-glycero-D-galacto-non-2-enopyranosoic acid trifluoroacetic acid salt