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2-(Dimethylamino)ethanol → 6-(2-Dimethylaminoethoxy)-2-(3-methoxy-6-pyridin-4-yl-pyridazin-4-yl)-indole-1-carboxylic acid tert-butyl ester

HRID 1786692
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1786692
[C:1]([O:5][C:6]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[C:14]([OH:17])[CH:15]=2)[CH:10]=[C:9]1[C:18]1[CH:23]=[C:22]([C:24]2[CH:29]=[CH:28][N:27]=[CH:26][CH:25]=2)[N:21]=[N:20][C:19]=1[O:30][CH3:31])=[O:7])([CH3:4])([CH3:3])[CH3:2].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[CH3:51][N:52]([CH3:56])[CH2:53][CH2:54]O.N(C(OCC)=O)=NC(OCC)=O>C1(C)C=CC=CC=1.C1COCC1>[C:1]([O:5][C:6]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[C:14]([O:17][CH2:54][CH2:53][N:52]([CH3:56])[CH3:51])[CH:15]=2)[CH:10]=[C:9]1[C:18]1[CH:23]=[C:22]([C:24]2[CH:25]=[CH:26][N:27]=[CH:28][CH:29]=2)[N:21]=[N:20][C:19]=1[O:30][CH3:31])=[O:7])([CH3:4])([CH3:3])[CH3:2]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 79022-(Dimethylamino)ethanolHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 1363396366-Hydroxy-2-(3-methoxy-6-pyridin-4-yl-pyridazin-4-yl)-indole-1-carboxylic acid tert-butyl ester

Produkt 1

HCID 671485996-(2-Dimethylaminoethoxy)-2-(3-methoxy-6-pyridin-4-yl-pyridazin-4-yl)-indole-1-carboxylic acid tert-butyl ester
Ausbeute 43 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 1140TolueneLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

100 mg 6-hydroxy-2-(3-methoxy-6-pyridin-4-yl-pyridazin-4-yl)-indole-1-carboxylic acid tert-butyl ester and 175 mg triphenylphosphine are dissolved in 7 mL toluene and 2 mL THF. After dropwise addition of 84 μL 2-dimethylaminoethanol and 123 μL diethyl azodicarboxylate, the reaction mixture is stirred at room temperature for 5 hours. The solvent is removed in vacuo and the residue is dissolved in dichloromethane. The organic phase is washed with water and the aqueous phase is extracted twice with dichloromethane. The combined organic phases are dried over MgSO4 and concentrated in vacuo. Purification by HPLC afforded 35 mg (43%) 6-(2-dimethylaminoethoxy)-2-(3-methoxy-6-pyridin-4-yl-pyridazin-4-yl)-indole-1-carboxylic acid tert-butyl ester.

Aufarbeitung

  1. customThe solvent is removed in vacuo
  2. dissolutionthe residue is dissolved in dichloromethane
  3. washThe organic phase is washed with water
  4. extractionthe aqueous phase is extracted twice with dichloromethane
  5. dry with materialThe combined organic phases are dried over MgSO4
  6. concentrationconcentrated in vacuo
  7. customPurification by HPLC

Quellen und Nachweise

ORD-Eintrag
ord-5b2c326aaee243048156ce6181409011
Quelldatensatz
uspto-grants-2009_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07507734B2

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