7-乙基-10-羟基喜树碱中间体

[6-chloro-4-(2-ethyl-1,3-dioxolan-2-yl)-2-methoxypyridin-3-yl]methanol

5-Benzyloxymethyl-6-methoxy-4-propionyl-pyridine-2-carboxylic acid propyl ester

6-Chloro-4-(2-ethyl-[1,3]dioxolan-2-yl)-2-methoxy-3-methoxymethyl-pyridine

2-[6-Methoxy-4-(1-methoxymethoxy-propyl)-pyridin-2-yl]-quinoline-3-carboxylic acid methyl ester