Hydrazine hydrate (1:1) → 8-(4-Fluorophenyl)-9-(1-methyl-1H-imidazo[4,5-c]pyridin-2-yl)-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-one

HRID 907966Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 907966
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[CH:17]([C:18]3[N:19]([CH3:27])[C:20]4[CH:25]=[CH:24][N:23]=[CH:22][C:21]=4[N:26]=3)[C:16](=O)[C:15]3[C:14]([C:29]([O:31]CC)=O)=[CH:13][CH:12]=[CH:11][C:10]=3[NH:9]2)=[CH:4][CH:3]=1.O.[NH2:35][NH2:36]>CO>[F:1][C:2]1[CH:3]=[CH:4][C:5]([CH:8]2[NH:9][C:10]3[C:15]4[C:16](=[N:35][NH:36][C:29](=[O:31])[C:14]=4[CH:13]=[CH:12][CH:11]=3)[CH:17]2[C:18]2[N:19]([CH3:27])[C:20]3[CH:25]=[CH:24][N:23]=[CH:22][C:21]=3[N:26]=2)=[CH:6][CH:7]=1

Komponenten

4

Edukt 2

HCID 24654Hydrazine hydrate (1:1)HCID 67261937Ethyl 2-(4-fluorophenyl)-3-(1-methyl-1H-imidazo[4,5-c]pyridin-2-yl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate

Produkt 1

HCID 1362651738-(4-Fluorophenyl)-9-(1-methyl-1H-imidazo[4,5-c]pyridin-2-yl)-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-oneAusbeute 5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

The mixture of ethyl 2-(4-fluorophenyl)-3-(1-methyl-1H-imidazo[4,5-c]pyridin-2-yl)-4-oxo-1,2,3,4-tetrahydroquinoline-5-carboxylate (150 mg, 0.34 mmol) and hydrazine monohydrate (2 mL) in methanol (5 mL) was stirred at room temperature for 4 h. Then methanol was evaporated under reduced pressure and the residue was extracted with ethyl acetate (20 mL×4). The combined organic layers were washed with brine, dried over anhydrous sodium sulfate and concentrated to give crude product, which was purified by chromatography (silica gel, DCM/MeOH=25:1 to 1:1) to give the title compound (6.7 mg, yield 5%). LC-MS (ESI) m/z: 413 (M+1)+. 1H-NMR (400 MHz, CD3OD) δ (ppm): 3.58 (s, 3H), 4.93-4.95 (d, J=11.6 Hz, 1H), 5.04-5.07 (d, J=11.6 Hz, 1H), 6.85-6.90 (t, J=8.8 Hz, 2H), 7.12-7.14 (d, J=8.0 Hz, 1H), 7.38-7.44 (m, 3H), 7.49-7.57 (m, 2H), 8.19-8.21 (d, J=5.6 Hz, 1H), 8.72 (s, 1H).

Aufarbeitung

  1. customThen methanol was evaporated under reduced pressure
  2. extractionthe residue was extracted with ethyl acetate (20 mL×4)
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated
  6. customto give crude product, which
  7. customwas purified by chromatography (silica gel, DCM/MeOH=25:1 to 1:1)

Quellen und Nachweise

ORD-Eintrag
ord-0f63ca016b0a4f1f98baced280dfee41
Quelldatensatz
uspto-grants-2011_09
Patentnummer
US08012976B2

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