2-Methyl-6-nitroaniline → HCID 86713561, compound

Participants

Reaction Steps

To a mixture of 6-(2,6-dichloro-3,5-dimethoxyphenyl)-8-methyl-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7(8H)-one (9) (1.0 g, 2.26 mmol) and 2-methyl-6-nitrobenzenamine (684 mg, 4.5 mmol) in DMF (20 mL), potassium tert-butoxide (756 mg, 6.75 mmol) was added at ˜10° C., and the reaction mixture was stirred at room temperature for 5 minutes. The reaction mixture was diluted with EtOAc (150 mL), and the organic phase was separated, washed with water (2×150 mL) and then brine (150 mL), dried over sodium sulfate, filtered, and concentrated. The residue was recrystallizated with EtOAc to give 2-(2-amino-6-methylphenylamino)-6-(2,6-dichloro-3,5-dimethoxyphenyl)-8-methylpyrido[2,3-d]pyrimidin-7(8H)-one (10) (810 mg, yield 70%) as a yellow solid. MS (ES+) C23H19Cl2N5O5 requires: 515, 517. found: 516, 518 [M+H]+.

Provenance & Evidence