[((R)-2-{4-[3-Chloro-4-(pyridin-2-ylmethoxy)phenylamino]quinazolin-5-yloxy}propylcarbamoyl)methyl]methylcarbamic acid tert-butyl ester → N1-{(2R)-2-[(4-{[3-Chloro-4-(pyridin-2-ylmethoxy)phenyl]amino}quinazolin-5-yl)oxy]propyl}-N2-methylglycinamide

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[((R)-2-{4-[3-Chloro-4-(pyridin-2-ylmethoxy)phenylamino]quinazolin-5-yloxy}propylcarbamoyl)methyl]methylcarbamic acid tert-butyl ester (obtained as described in Example 123, 0.50 g) was stirred in trifluoroacetic acid (5 ml) for 20 hours. Volatile material was removed by evaporation and the residue was purified by chromatography, eluting with aqueous ammonia (0.880), methanol, DCM (1:10:90). Evaporation of the appropriate fractions gave the title compound as a solid (60 mg, 15%); (DMSO-d6 @ 373k) 1.47-1.50 (d, 3H), 2.20 (s, 3H), 3.10 (s, 2H), 3.45-3.55 (q, 1H), 3.55-3.65 (q, 1H), 4.85-5.00 (m, 1H), 5.25 (s, 2H), 7.15-7.25 (q, 2H), 7.25-7.30 (m, 2H), 7.55-7.65 (t, 1H), 7.70-7.80 (m, 2H), 8.20 (s, 1H), 8.50 (s, 1H), 8.55-8.60 (d, 1H), 9.85-9.95 (bs, 1H); Mass spectrum MH+ 507.

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