反应详情

Following the procedure for the preparation of methyl 3-bromo-6-{[(1R,2S)-2-hydroxy-2,3-dihydro-1H-inden-1-yl]amino}pyrazine-2-carboxylate but substituting methyl 3-(2,4-dichlorophenyl)-6-{[(1R,2S)-2-hydroxy-2,3-dihydro-1H-inden-1-yl]amino}pyrazine-2-carboxylate and making non-critical variations provided the title compound as a solid: 1H NMR (CDCl3) δ 2.99–3.04, 3.20–3.25, 3.70, 3.99–4.08, 4.77, 5.59–5.62, 6.11, 7.24–7.38; MS (ESI+) for C21H16BrCl2N3O3 m/z 509 (M+H)+.