反应详情

2-(4,4-Dimethyl-cyclohex-1-enyl)-6-(2,2,6,6-tetramethyl-tetrahydro-pyran-4-yl)-pyridin-3-ylamine (as prepared in the previous step, 10.0 g, 0.029 mol) was coupled to 4-cyano-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-2-carboxylic acid, potassium salt as described in Example 1, step (b) to obtain the title compound (15.8 g, 92%) after purification on silica gel (30-70% EtOAc-hexane) as a white solid: Mass spectrum (ESI, m/z): Calcd. for C33H49N5O3Si, 592.3 (M+H), found 592.4.