Methyl 4-[2-[4-[3-[(2-methylpropan-2-yl)oxycarbonylamino]propoxy]phenyl]ethynyl]-6-(methylsulfonyloxymethyl)pyridine-2-carboxylate 、
Methyl 6-[[4-[[6-methoxycarbonyl-4-[2-(4-methoxyphenyl)ethynyl]pyridin-2-yl]methyl]-1,4,7-triazonan-1-yl]methyl]-4-[2-(4-methoxyphenyl)ethynyl]pyridine-2-carboxylate 在
potassium carbonate 作用下,
以
乙腈 为溶剂,
反应 2.0h,
以21%的产率得到Methyl 6-[[4-[[6-methoxycarbonyl-4-[2-(4-methoxyphenyl)ethynyl]pyridin-2-yl]methyl]-7-[[6-methoxycarbonyl-4-[2-[4-[3-[(2-methylpropan-2-yl)oxycarbonylamino]propoxy]phenyl]ethynyl]pyridin-2-yl]methyl]-1,4,7-triazonan-1-yl]methyl]-4-[2-(4-methoxyphenyl)ethynyl]pyridine-2-carboxylate