9-bromo-5-carboxymethyl-6,7-dihydro-1H, 5 H-pyrido[1,2,3-de]quinoxaline-2,3-dione → HCID 178520188, compound

Participants

Reaction Steps

A procedure similar to that described in Example 51 was carried out with 9-bromo-5-carboxymethyl-6,7-dihydro-1H, 5H-pyrido[1,2,3-de]quinoxaline-2,3-dione (170 mg, 0.5 mmol) and aminotetrazole (50 mg, 0.59 mmol) to give 170 mg of the title compound (84%): mp 246°~247° C.; 1H NMR (270 MHz, DMSO-d6) δ12.12 (bs, 1H), 12.08 (s, 1H), 7.24 (d, 1H, J=2 Hz), 7.17 (d, 1H, J=2 Hz), 5.19~5.28 (m, 1H), 3.01 (ddd, 1H, J=17.1, 13.5, 4.5 Hz), 2.84 (dm, 1H, J=17.1 Hz), 2.66~2.75 (m, 2H), 2.12 (dm, 1H, J=13.5 Hz), 1.83~1.97 (m, 1H).

Provenance & Evidence