反应详情

A suspension of 4-chloro-benzo[e][1,3]oxazin-2-one (620 mg, 3.41 mmol, 2.0 eq), 2-amino-5,5-dimethyl-heptanoic acid (4-cyano-1-propyl-piperidin-4-yl)-amide (675 mg, 1.71 mmol, 1.00 eq), and 4-methylmorpholine (NMM) (0.56 mL, 5.09 mmol, 3.00 eq) in acetonitrile (9.0 mL) was stirred at room temperature overnight. The reaction mixture was then concentrated, resuspended in ethyl acetate (50 mL) and washed with saturated Na2CO3 solution. The organic phase was dried (MgSO4) and concentrated and the resulting residue was chromatographed over silica gel using a gradient of methanol in dichloromethane as the eluant to provide 124 mg (16% yield) of the title compound; m/z calculated for C26H37N5O3 467.6, found 468.4 (M+H)+.

1. concentrationThe reaction mixture was then concentrated
2. washwashed with saturated Na2CO3 solution
3. dry with materialThe organic phase was dried (MgSO4)
4. concentrationconcentrated
5. customthe resulting residue was chromatographed over silica gel using a gradient of methanol in dichloromethane as the eluant