t-butoxycarbonyl-sarcosinyl-D-isoglutamine benzyl ester 在
三氟乙酸 作用下,
以
乙腈 为溶剂,
反应 15.33h,
生成 (R)-4-(2-{[(R)-2-((4aR,6S,7R,8R,8aS)-7-Acetylamino-6-benzyloxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy)-propionyl]-methyl-amino}-acetylamino)-4-carbamoyl-butyric acid benzyl ester