反应详情

In the same way as described for Compound 90, step 1, using 5,8-dibromoimidazo[1,2-a]pyrazine (334 mg, 1.21 mmol), 4-(2-methyl-2H-tetrazol-5-yl)-phenylamine (211.1 g, 1.21 mmol), NaOtBu (162 mg, 1.69 mmol), Pd2(dba)3 (44.1 mg, 0.0482 mmol), Xantphos (55.8 mg, 0.0964 mmol) and toluene (16 mL). The crude product is purified by silica gel column chromatography eluting with a 8:2:1 mixture petroleum ether:EtOAc:MeOH to afford the title compound as a yellow solid (198 mg, 44%).

1. customThe crude product is purified by silica gel column chromatography
2. washeluting with a 8:2:1 mixture petroleum ether