Methanol → HCID 54305973, Verbindung

HRID 1379552Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1379552
[CH3:1][N:2]1[C@H:11]2[C@@:6]([CH3:23])([C:7]3[CH:15]=[CH:14][C:13]([C:16]4[CH:21]=[CH:20][CH:19]=[C:18]([NH2:22])[CH:17]=4)=[CH:12][C:8]=3[CH2:9][CH2:10]2)[CH2:5][CH2:4][C:3]1=[O:24].[C:25](=N)([C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1.CO.C([BH3-])#N.[Na+]>ClCCl.Cl.C(O)(=O)C.C(OCC)(=O)C>[CH3:1][N:2]1[C@H:11]2[C@@:6]([CH3:23])([C:7]3[CH:15]=[CH:14][C:13]([C:16]4[CH:21]=[CH:20][CH:19]=[C:18]([NH:22][CH:25]([C:26]5[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=5)[C:32]5[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=5)[CH:17]=4)=[CH:12][C:8]=3[CH2:9][CH2:10]2)[CH2:5][CH2:4][C:3]1=[O:24]

Komponenten

9

Edukt 4

HCID 887MethanolHCID 136809Benzophenone imineHCID 5003444Sodium cyanoborohydrideHCID 54238570HCID 54238570, Verbindung

Produkt 1

HCID 54305973HCID 54305973, VerbindungAusbeute 83 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 176Acetic AcidKatalysatorHCID 313Hydrochloric AcidKatalysatorHCID 6344DichloromethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a solution of (+)-(4aR)-(10bR)-4-methyl-8-(3-aminophenyl)-10b-methyl-1,2,3,4,4a,5,6,10b-octahydrobenzo[f]quinolin-3-one (22 mg, 0.07 mmol), in 0.25 mL of dichloromethane was added benzophenone imine (1 eq), followed by 1 drop of 1N hydrochloric acid. The mixture was stirred at room temperature for 1 h, concentrated, and 0.5 mL of methanol and sodium cyanoborohydride (0.14 mmol) followed by two drops of glacial acetic acid was added, and the mixture was stirred for 16 h, diluted with ethyl acetate, rinsed with saturated sodium bicarbonate solution, and brine. The organic layer was dried over sodium sulfate, concentrated and chromatographed on silica gel (ethyl acetate eluent) to give, after trituration of the resulting oil from ether/hexanes, 28 mg (83%) of the title compound as a white solid. mp 109°-111°. FDMS: m/e=486. α[D]589 =+46.90 (c=0.49, methanol).

Aufarbeitung

  1. concentrationconcentrated
  2. additionwas added
  3. stirringthe mixture was stirred for 16 h
  4. washrinsed with saturated sodium bicarbonate solution, and brine
  5. dry with materialThe organic layer was dried over sodium sulfate
  6. concentrationconcentrated
  7. customchromatographed on silica gel (ethyl acetate eluent)
  8. customto give

Quellen und Nachweise

ORD-Eintrag
ord-c2bc49d4c8f249e28056fb4628ce3df3
Quelldatensatz
uspto-grants-1997_09
Patentnummer
US05670514

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