Diisopropylethylamine → 4-methyl-6-{6-[4-(5-oxo-3-phenyl-4,5-dihydro-1,2,4-triazol-1-yl)-piperidin-1-yl]-pyrimidine-4-carbonyl}-3H-benzoxazol-2-one

Participants

Reaction Steps

378 mg (1.00 mmol) 5-phenyl-2-piperidin-4-yl-2,4-dihydro-1,2,4-triazol-3-one, 289 mg (1.00 mmol) 6-(6-chloropyrimidine-4-carbonyl)-4-methyl-3H-benzoxazol-2-one and 0.348 mL (2.0 mmol) DIPEA were stirred overnight in 10 mL DMF at RT. The mixture was purified by preparative HPLC-MS. The fractions containing the product were combined, the organic solvent was eliminated i. vac. and the aqueous phase remaining was neutralised with a 4N aqueous NaOH solution. The precipitate was suction filtered, washed with water and dried in the CAD.

Provenance & Evidence