Diisopropylethylamine → 1-(5-Tert-butyl-isoxazol-3-yl)-3-(3-{6-[2-(1,1-dioxo-thiomorpholin-4-yl)-ethoxy]-7-methoxy-quinazolin-4-ylsulfanyl}-phenyl)-urea

Participants

Reaction Steps

The title compound was prepared as described in Example 57B by using 1-(5-tert-butylisoxazol-3-yl)-3-(3-(6-(2-chloroethoxy)-7-methoxyquinazolin-4-ylthio)phenyl)urea from Example 65A (200 mg, 0.38 mmol), thiomorpholine 1,1-dioxide (154 mg, 1.14 mmol), tetrabutylammonium iodide (140 mg, 0.38 mmol) and N,N′-diisopropylethylamine (135 μL, 0.76 mmol) in N,N′-dimethylformamide (2 mL) to afford 1-(5-tert-butyl-isoxazol-3-yl)-3-(3-{6-[2-(1,1-dioxo-thiomorpholin-4-yl)-ethoxy]-7-methoxy-quinazolin-4-ylsulfanyl}-phenyl)-urea (56.27 mg, 24%) as a solid. 1H NMR (300 MHz, DMSO-d6) δ 9.59 (s, 1H), 9.01 (s, 1H), 8.69 (s, 1H), 7.85 (s, 1H), 7.52-7.27 (m, 5H), 6.49 (s, 1H), 4.30 (bs, 2H), 3.99 (s, 3H), 3.12-3.04 (m, 10H), 1.27 (s, 9H); LC-MS (ESI) m/z 627 (M+H)+.

Provenance & Evidence