1-Methylpiperazine → 1-(5-Tert-butylisoxazol-3-yl)-3-(3-(7-methoxy-6-(2-(4-methylpiperazin-1-yl)ethoxy)quinazolin-4-ylthio)phenyl)urea

Participants

Reaction Steps

The urea intermediate from Example 65A (200 mg, 0.38 mmol) and N-methyl piperazine (0.126 mL, 1.14 mmol) were reacted as described in Example 57B to afford 1-(5-tert-butylisoxazol-3-yl)-3-(3-(7-methoxy-6-(2-(4-methylpiperazin-1-yl)ethoxy)quinazolin-4-ylthio)phenyl)urea as a colorless solid (49 mg, 22%). 1H NMR (300 MHz, DMSO-d6) δ 9.58 (brs, 1H), 9.00 (brs, 1H), 8.69 (s, 1H), 7.85 (s, 1H), 7.26-7.49 (m, 5H), 6.49 (s, 1H), 4.25-4.29 (m, 2H), 3.98 (s, 3H), 2.75-2.79 (m, 2H), 2.20-2.60 (m, 8H), 2.15 (s, 3H), 1.27 (s, 9H); LC-MS (ESI) m/z 592 (M+H)+.

Provenance & Evidence