反应详情

174(a) 5-(Aminomethyl)-1,6-diethyl-N-(tetrahydro-2H-pyran-4-yl)-1H-pyrazolo[3,4-b]pyridin-4-amine (303.0 mg, 1.0 mmol) and 2,2-dimethylbutanedioic acid (146.0 mg, 1.0 mmol) were dissolved in DCM (10 mL), followed by the addition of HOBt (1.0 eq, 153.0 mg) and EDC (1.0 eq, 192.0 mg). The resultant solution was stirred overnight. The solution was purified by reverse phase HPLC using a Gilson to yield 4-({[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}amino)-2,2-dimethyl-4-oxobutanoic acid and 4-({[1,6-diethyl-4-(tetrahydro-2H-pyran-4-ylamino)-1H-pyrazolo[3,4-b]pyridin-5-yl]methyl}amino)-3,3-dimethyl-4-oxobutanoic acid mixture 120 mg.

1. customThe solution was purified by reverse phase HPLC