Triethylamine → HCID 178428671, compound

Participants

Reaction Conditions

Reaction Steps

STEP 6 A mixture of 1,1-dimethylethyl 7-{5-[(phenylmethyl)amino]-1H-pyrazol-3-yl}-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (92 mg, 0.22 mmol) in acetonitrile (2 mL) and 4 M hydrogen chloride in 1,4-dioxane (2 mL) was stirred at 70° C. for 10 minutes. The reaction mixture was allowed to cool then concentrated and the residue suspended in N,N-dimethylformamide (2 mL). Triethylamine (123 mg, 1.21 mmol), then 4-methylpiperidine-1-carbonyl chloride (reagent preparation 37) (35 mg, 0.22 mmol) were added and the resulting mixture was stirred at room temperature for 18 hours. The crude mixture diluted with methanol (6 mL) and purified by preparative reverse phase HPLC to give 3-{4-[(4-methylpiperidin-1-yl)carbonyl]-2,3,4,5-tetrahydro-1,4-benzoxazepin-7-yl}-N-(phenylmethyl)-1H-pyrazol-5-amine (56 mg, 57% yield), (400 MHz, methanol-d4): 7.49 (br, 1H), 7.45 (dd, 1H), 7.39 (d, 2H), 7.30 (t, 2H), 7.22 (dd, 1H), 6.96 (d, 1H), 5.81 (s, 1H), 4.43 (s, 2H), 4.33 (s, 2H), 4.17 (m, 2H), 3.66 to 3.59 (m, 4H), 2.80 (t, 2H), 1.67 to 1.50 (m, 3H), 1.24 to 1.12 (m, 2H), 0.96 (d, 3H); MS (EI) for C26H31N5O2: 446 (MH+).

Provenance & Evidence