2-{5-[(1S,2S,3R,4R)-2,3-(isopropylidenedioxy)-4-(trityloxymethyl)cyclopentyl]-4-methoxycarbonyl-1H-pyrazolyl-3}acetamide 在
sodium ethanolate 作用下,
以
乙醇 为溶剂,
反应 1.75h,
以70%的产率得到3-[(1S,2S,3R,4R)-2,3-(isopropylidenedioxy)-4-(trityloxymethyl)cyclopentyl]-1H-pyrazolo[4,3-c]pyridine-4,6(5H,7H)-dione