Potassium Carbonate → N-cyclopropyl-3-[6-(2-hydroxy-2-methyl-3-pyrrolidin-1-ylpropoxy)-4-oxoquinazolin-3(4H)-yl]-4-methylbenzamide

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To a solution of the crude 3-[(3-{5-[(cyclopropylamino)carbonyl]-2-methylphenyl}-4-oxo-3,4-dihydroquinazolin-6-yl)oxy]-2-hydroxy-2-methylpropyl 4-methylbenzenesulfonate (0.2 g) in anhydrous DMF (10 ml) was added potassium carbonate (0.1 g) followed by pyrrolidine (0.15 g) and the mixture stirred at room temperature for 18 hours. The mixture was concentrated and purification by preparative HPLC provided the title compound as a gum (50 mg); NMR Spectrum: (CDCl3) 0.60 (m, 2H), 0.90 (m, 2H), 1.20 (m, 1H), 1.40 (s, 3H), 1.80 (m, 4H), 2.20 (s, 3H), 2.75 (m, 6H), 4.20 (m, 2H), 6.40 (s, 1H), 7.50 (m, 2H), 7.70 (m, 3F[), 7.80 (d, 1H), 7.90 (s, 1H); Mass Spectrum: M+H+ 477.

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