Hydrazine hydrate (1:1) → HCID 136385211, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of methyl 2,3-bis(4-((dimethylamino)methyl)phenyl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate and ethyl 2,3-bis(4-((dimethylamino)methyl)phenyl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate (165 mg, 0.34 mmol) in hydrazine monohydrate (12 mL) and methanol (5 mL) was stirred at 40° C. for 6 hrs. The mixture was filtered to give crude product. The crude product was purified by prep-HPLC to give 8,9-bis(4-((dimethylamino)methyl)phenyl)-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-one (33.7 mg, yield: 22%) as a light yellow solid. 1H-NMR (400 MHz, CD3OD) δ: 2.04 (s, 6H), 2.05 (s, 6H), 3.19-3.20 (m, 2H), 3.24-3.26 (m, 2H), 4.09-4.11 (d, J=8.8 Hz, 1H), 4.52-4.54 (d, J=8.8 Hz, 1H), 6.88-6.90 (m, 2H), 6.99-7.07 (m, 7H), 7.42-7.46 (m, 2H). LC-MS (ESI) m/z: 454(M+1)+.

Provenance & Evidence