Methanol → HCID 11750453, compound

Participants

Reaction Steps

tert-Butyl 4-[(3-{5-[(cyclopropylamino)carbonyl]-2-methylphenyl}-4-oxo-3,4-dihydroquinazolin-6-yl)oxy]piperidine-1-carboxylate (3.42 g) was stirred in 4N HCl in dioxane (20 ml) and methanol (3 ml) at room temperature for 18 hours and then concentrated. The residue was purified by column chromatography on an ion exchange column (isolute SCX-2 column from International Sorbent Technology Limited, Henoed, Mid-Glamorgan, UK) washing with methanol initially and then eluting with a 99:1 mixture of methanol and aqueous ammonia solution to give N-cyclopropyl-4-methyl-3-[4-oxo-6-(piperidin-4-yloxy)quinazolin-3(4H)-yl]benzamide (2.67 g) as a light brown solid; NMR Spectrum: (DMSOd6) 0.54 (m, 2H), 0.69 (m, 2H), 1.50 (m, 2H), 1.95 (m, 2H), 2.15 (s, 3H), 2.60 (m, 2H), 2.85 (m, 1H), 2.95 (m, 2H), 4.59 (m, 1H), 7.51 (d, 1H), 7.52 (d, 1H), 7.59 (s, 1H), 7.71 (d, 1H), 7.82 (s, 1H), 7.90 (d, 1H), 8.18 (s, 1H), 8.42 (d, 1H); Mass Spectrum: M+H+ 419.

Provenance & Evidence