5-氨基-2-(哒嗪-3-基)嘧啶-4-醇 、 2-(3-(diethoxyphosphoryl)phenyl)acetic acid 在
三乙胺 、
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
乙腈 为溶剂,
以25%的产率得到diethyl 3-(2-(4-hydroxy-2-(pyridazin-3-yl)pyrimidin-5-ylamino)-2-oxoethyl)phenyl-phosphonate