Sodium Carbonate → HCID 58699918, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 240 mg (0.57 mmol) 2-bromo-3-(but-2-ynyl)-5-(4-methyl-quinazolin-2-ylmethyl)-3,5-dihydro-imidazo[4,5-d]pyridazin-4-one and 140 mg (0.70 mmol) tert-butyl (R)-piperidin-3-yl-carbamate in 4 ml dimethylsulphoxide was combined with 95 mg (0.90 mmol) sodium carbonate and stirred for 3 h at 80° C. Then another 50 mg tert-butyl piperidin-3-yl-carbamate was added and the mixture was stirred for a further 2 h at 80° C. After cooling to ambient temperature the mixture was combined with 10 ml of water and stirred for 30 minutes. The product thus precipitated was suction filtered, washed with 5 ml of water and dried.

Provenance & Evidence