Diisopropylethylamine → HCID 58267802, compound

Participants

Reaction Conditions

Reaction Steps

A stirred solution of phenyl 3-tert-butyl-1-cyclohexyl-1H-pyrazol-5-ylcarbamate prepared as described in Example 330A (200 mg, 0.59 mmol), N,N-diisopropylethylamine (67 mg, 0.52 mmol) and 3-(6,7-dimethoxyquinazolin-4-ylthio)aniline (prepared as described in Example 115B) (85 mg, 0.27 mmol) in THF (1.0 mL) was heated at 60° C. for 15 h. After cooling to rt, the reaction solution was partitioned between dichloromethane and a saturated aqueous solution of sodium carbonate. The organic phase was separated and concentrated under reduced pressure. The crude product was purified via silica gel column chromatography (eluting with a gradient of 40:1 to 20:1 dichloromethane:methanol) then reverse-phase preparative HPLC to afford 1-(3-tert-butyl-1-cyclohexyl-1H-pyrazol-5-yl)-3-(3-(6,7-dimethoxyquinazolin-4-ylthio)phenyl)urea (52 mg, 18%) as a pale yellow solid. 1H NMR (400 MHz, DMSO-d6) δ 9.17 (s, 1H), 8.71 (s, 1H), 8.53 (s, 1H), 7.84 (s, 1H), 7.26-7.55 (m, 5H), 6.06 (s, 1H), 4.00 (s, 6H), 3.94 (m, 1H), 1.62-1.81 (m, 7H), 1.24-1.36 (m, 12H); LC-MS (ESI) m/z 561 (M+H)+.

Provenance & Evidence