Hydrazine hydrate (1:1) → 8-(4-((Dimethylamino)methyl)phenyl)-9-(4-methoxyphenyl)-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-one

HRID 908004Notes

Reaction equation

HRID 908004 reaction equation
[CH3:1][N:2]([CH2:4][C:5]1[CH:10]=[CH:9][C:8]([CH:11]2[CH:20]([C:21]3[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=3)[C:19](=O)[C:18]3[C:17]([C:30](OCC)=[O:31])=[CH:16][CH:15]=[CH:14][C:13]=3[NH:12]2)=[CH:7][CH:6]=1)[CH3:3].O.[NH2:36][NH2:37]>CO>[CH3:3][N:2]([CH2:4][C:5]1[CH:10]=[CH:9][C:8]([CH:11]2[NH:12][C:13]3[C:18]4[C:19](=[N:36][NH:37][C:30](=[O:31])[C:17]=4[CH:16]=[CH:15][CH:14]=3)[CH:20]2[C:21]2[CH:22]=[CH:23][C:24]([O:27][CH3:28])=[CH:25][CH:26]=2)=[CH:7][CH:6]=1)[CH3:1]

Participants

4

Reactant 2

HCID 24654Hydrazine hydrate (1:1)HCID 67259041Ethyl 2-(4-((dimethylamino)methyl)phenyl)-3-(4-methoxyphenyl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate

Product 1

HCID 1359984268-(4-((Dimethylamino)methyl)phenyl)-9-(4-methoxyphenyl)-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-one

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A mixture of ethyl 2-(4-((dimethylamino)methyl)phenyl)-3-(4-methoxyphenyl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate (70 mg, 0.15 mmol) and hydrazine monohydrate (1 mL) in methanol (5 mL) was stirred at room temperature for 5 hr. The resulting mixture was evaporated under reduced pressure to a volume of 1 mL and then filtered. The filtrate was concentrated to give the title compound as a white solid (26.5 mg). LC-MS (ESI) m/z: 427(M+1)+. 1H-NMR (400 MHz, CD3OD) δ (ppm): 2.79 (s, 6H), 3.71 (s, 3H), 4.24 (s, 2H), 4.26 (d, 1H), 4.77 (d, 1H), 6.74 (d, 2H), 6.99 (d, 2H), 7.18-7.21 (m, 1H), 7.35-7.43 (m, 4H), 7.55-7.57 (m, 1H), 7.65 (t, 3H).

Workup

  1. customThe resulting mixture was evaporated under reduced pressure to a volume of 1 mL
  2. filtrationfiltered
  3. concentrationThe filtrate was concentrated

Sources & evidence

ORD record
ord-7a4e7727877345c087d73f82758436d3
Source dataset
uspto-grants-2011_09
Patent number
US08012976B2

Reaction notes

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