4-Methylmorpholine → HCID 178452470, compound

Participants

Reaction Conditions

Reaction Steps

In a 25 mL round-bottomed flask, (S)-tert-butyl 2-(4-aminophenyl)morpholine-4-carboxylate (100 mg, 359 μmol, Eq: 1.00), 3-phenyl-1H-pyrazole-5-carboxylic acid (87.9 mg, 467 μmol, Eq: 1.3) (CAS-1134-49-2), N-Methylmorpholine (109 mg, 118 μl, 1.08 mmol, Eq: 3) and HBTU (204 mg, 539 μmol, Eq: 1.5) were combined with DMF (3.75 ml). The reaction mixture was stirred at 60° C. for 16.5 hours. The mixture was poured into water (10 ml) and extracted twice with EtOAc. The organic layers were washed with brine, dried over MgSO4, filtered and concentrated in vacuo. The crude material was purified by column chromatography. (6 g silica gel (63-200A), eluent: heptane/EtOAc 2:1) to give the title compound as a white solid (120 mg, 74.5%). MS (ISP): 449.5 ([M+H]+).

Provenance & Evidence