Methyl chloroformate → HCID 57974279, compound

Participants

Reaction Steps

N-[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]-5-[2-(methylamino)ethoxy]quinazolin-4-amine (obtained as described in Example 1, preparation of starting materials, 217 mg) and DIPEA (0.2 ml) were stirred in DCM (20 ml). Methyl chloroformate (0.043 ml) was added slowly and the resulting solution was stirred for 18 hours. The solution was evaporated and the residue purified by chromatography, eluting with increasing concentrations of methanol in ethyl acetate (5-10%). The appropriate fractions were evaporated to give an oil, which was triturated with acetonitrile to give the title compound as a solid (43 mg, 17%); NMR spectrum (DMSO-d6 @ 373K) 2.88 (s, 3H), 3.30 (s, 3H), 3.75-3.85 (t, 2H), 4.35-4.55 (bs, 2H), 5.30 (s, 2H), 7.10-7.30 (m, 2H), 7.30-7.40 (m, 2H), 7.50-7.60 (m, 2H), 7.70-7.78 (t, 1H), 7.80-7.95 (m, 2H), 8.43 (bs, 1H), 8.75-8.80 (d, 1H), 9.60-9.80 (bs, 1H); Mass spectrum MH+ 494.0.

Provenance & Evidence