Triethylamine → Methyl 3-(1,3-dimethyl-2,4-dioxo-5-phenyl-3,4-dihydro-1H-pyrrolo[3,4-d]pyrimidin-6(2H)-yl)propanoate

Participants

Reaction Steps

5-Benzoyl-6-(bromomethyl)-1,3-dimethylpyrimidine-2,4(1H,3H)-dione (Intermediate C) (3 g, 8.90 mmol), beta alanine methyl ester hydrochloride (1.242 g, 8.90 mmol) and triethylamine (2.480 mL, 17.80 mmol) in EtOH (63.6 mL) was heated to 100° C. for 90 min using microwave radiation. The reaction mixture was diluted with of DCM (80 ml) and washed with water and 0.1M HCl. The organic portion was dried by passing through a phase separating cartridge and concentrated in vacuo to yield the title compound as a pale yellow oil.

Provenance & Evidence