I-4'-demethylepipodophyllotoxin 、
(S)-2-Amino-3-phenyl-propionic acid 3-(5-fluoro-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-propyl ester 在
三乙胺 作用下,
以
四氢呋喃 为溶剂,
以54%的产率得到(S)-2-[(5S,5aS,8aR,9R)-9-(4-Hydroxy-3,5-dimethoxy-phenyl)-8-oxo-5,5a,6,8,8a,9-hexahydro-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-5-ylamino]-3-phenyl-propionic acid 3-(5-fluoro-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-propyl ester