Chloroacetyl chloride → HCID 68519517, compound

Participants

Reaction Conditions

Reaction Steps

Chloroacetyl chloride (135 mg) was added to a solution of 4-(3-chloro-2-fluoroanilino)-6-(piperidin-4-yloxy)-7-methoxyquinazoline di-hydrochloride (500 mg) (Starting material for Example 16) and diisopropylethylamine (368 mg) in methylene chloride (15 ml) that was cooled at 0° C. and the mixture was stirred for 2 hours and allowed to warm to room temperature. The reaction mixture was adsorbed onto silica and the residue purified by column chromatography on silica eluting with increasingly polar mixtures of methylene chloride/methanol (100/0 to 94/6). The fractions containing the expected product were combined and were re-purified by column chromatography on silica eluting with increasingly polar mixtures of methylene chloride/methanol (100/0 to 96/4). The fractions containing the expected product were combined and evaporated under vacuum to give 4-(3-chloro-2-fluoroanilino)-6-[1-(chloroacetyl)piperidin-4-yloxy]-7-methoxyquinazoline as a crystalline solid (0.33 g); 1H NMR Spectrum: (DMSO d6) 1.60-1.83 (m, 2H), 1.94-2.10 (m, 2H), 3.36-3.46 (m, 2H), 3.67-3.86 (m, 2H), 3.94 (s, 3H), 4.40 (s, 2H), 4.77 (m, 1H), 7.22 (s, 1H), 7.27 (t, 1H), 7.46-7.55 (m, 2H), 7.89 (s, 1H), 8.38 (s, 1H), 9.60 (s, 1H); Mass Spectrum: (M+H)+ 479.

Provenance & Evidence