1-Methylpiperazin-2-one → HCID 10257666, compound

Participants

Reaction Steps

This was prepared by the method described in example 13 using N-[5-Chloro-7-(4-methoxybut-1-yn-1-yl)-1,3-benzodioxol-4-yl]-7-(3-chloropropoxy)-6-methoxyquinazolin-4-amine (200 mg, 0.40 mmol) and 1-methylpiperazin-2-one (226 mg, 1.98 mmol) in 2-methoxyethanol (4 ml). The crude product was purified by column chromatography on silica using increasing concentrations of methanol in dichloromethane as eluent. There was thus obtained the title compound (166 mg, 72%) as a pale brown solid; NMR Spectrum:(CDCl3) 2.10 (quintet, 2H), 2.61 (t,2H), 2.72 (m, 4H), 2.95 (s, 3H), 3.15 (s, 2H), 3.31 (t, 2H), 3.40 (s, 3H), 3.61 (t, 2H), 3.98 (s, 3H), 4.25 (t, 2H), 6.06 (s, 2H), 6.96 (s, 1H), 7.03 (s, 1H), 7.12 (s, 1H), 7.26 (s, 1H), 8.60 (s, 1H); Mass Spectrum: M+H+ 582/584.

Provenance & Evidence