Cyclopropylamine → 9-Bromo-5-cyclopropylcarbamoylmethyl-6,7-dihydro-1H, 5H-pyrido[1,2,3-de]quinoxaline-2,3-dione

関与物質

反応手順

A procedure similar to that described in Example 5 was carried out with 9-bromo-5-carboxymethyl-6,7-dihydro-1H, 5H-pyrido[1,2,3-de]quinoxaline-2,3-dione (150 mg, 0.44 mmol) and cyclopropylamine (50 μL, 0.5 mmol) to give 143 mg of the title compound (86%): mp 265°~268° C.; 1H NMR (270 MHz, DMSO-d6) δ12.04 bs, 1H), 8.04 (d, 1H, J=4 Hz), 7.20 (d, 1H, J=2 Hz), 7.14 (d, 1H, J=2 Hz), 5.05~5.14 (m, 1H), 2.97 (ddd, 1H, J=17.1, 13.5, 4.5 Hz), 2.77 (dm, 1H, J=17.1 Hz), 2.54~2.64 (m, 2H), 2.35 (dd, 1H, J=16.2, 4.5 Hz), 2.25 (dd, 1H, J=16.2, 11.7 Hz), 2.00 (dm, 1H, J=13.5 Hz), 1.73~1.87 (m, 1H), 0.56~0.64 (m, 2H), 0.32~0.41 (m, 2H).

情報源と証拠