反应详情

Intermediate 7 was prepared using methods analogous to those described for Intermediate 6 except 2,4-diaminopyrimidine was the starting material. MS (ESI+): calcd for C6H6N4 m/z 134.06. found 135.1 (M+H)+. 1H NMR (d4-methanol): 8.27 (d, J=7.2, 1H), 7.31 (d, J=1.8, 1H), 7.18 (d, J=1.8, 1H), 6.35 (d, J=7.2, 1H).