8-bromo-2-piperidin-4-yl[1]benzofuro[3,2-d]pyrimidin-4(3H)-one 、 1,1-Dimethylethyl 4-(8-bromo-4-oxo-3,4-dihydrobenzofuro[3,2-d]pyrimidin-2-yl)piperidine-1-carboxylate 、 (2S,4S)-tert-butyl 4-fluoro-2-(8-methoxy-4-oxo-3,4-dihydrobenzofuro[3,2-d]pyrimidin-2-yl)pyrrolidine-1-carboxylate 生成
2-[(2S,4S)-4-fluoropyrrolidin-2-yl]-8-(methyloxy)-[1]benzofuro[3,2-d]pyrimidin-4(3H)-one