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Dimethylamine → 7-(2-(dimethylamino)ethyl)-N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide

HRID 706635
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 706635
[CH3:1][C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][C:9]=2[NH:11][C:12]([C:14]2[N:18]3[CH:19]=[CH:20][C:21]([CH2:23][CH:24]=O)=[CH:22][C:17]3=[N:16][CH:15]=2)=[O:13])[N:4]([CH2:26][C:27]2[CH:32]=[CH:31][CH:30]=[C:29]([CH3:33])[N:28]=2)[N:3]=1.[CH3:34][NH:35][CH3:36].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>CO.CCO>[CH3:34][N:35]([CH3:36])[CH2:24][CH2:23][C:21]1[CH:20]=[CH:19][N:18]2[C:14]([C:12]([NH:11][C:9]3[CH:8]=[CH:7][CH:6]=[C:5]4[C:10]=3[C:2]([CH3:1])=[N:3][N:4]4[CH2:26][C:27]3[CH:32]=[CH:31][CH:30]=[C:29]([CH3:33])[N:28]=3)=[O:13])=[CH:15][N:16]=[C:17]2[CH:22]=1
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Komponenten

5

Edukt 3

HCID 674DimethylamineHCID 5049666Sodium triacetoxyborohydride2×HCID 86699334N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)-7-(2-oxoethyl)imidazo[1,2-a]pyridine-3-carboxamide

Produkt 1

HCID 573874107-(2-(dimethylamino)ethyl)-N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamideAusbeute 20,8 %

Reagenzien, Katalysatoren, Lösungsmittel

1
HCID 18681192Ethanol, mixt. with methanolLösungsmittel

Versuchsvorschrift

A solution of N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)-7-(2-oxoethyl)imidazo[1,2-a]pyridine-3-carboxamide (33 mg, 0.068 mmol) and dimethylamine (0.34 mL, 0.68 mmol) in 1.4 mL of a 1:1 MeOH/EtOH mixture was treated at ambient temperature with excess (10 equivalents) sodium triacetoxyborohydride. The reaction mixture was stirred overnight at ambient temperature. Another 10 equivalents of sodium triacetoxyborohydride were added, and stirring was continued for a few more hours. The reaction mixture was quenched with an equal volume of saturated, aqueous sodium bicarbonate, and extracted with DCM and EtOAc. The combined organic extracts were dried over anhydrous sodium sulfate, concentrated, and subjected to preparative thin-layer chromatography on silica, with an 8% MeOH-2% 7N NH3/MeOH/DCM mixture as eluent, to afford 6.6 mg of desired product. MS (ES+APCI) m/z=468 (M+H) detected.

Aufarbeitung

  1. stirringstirring
  2. waitwas continued for a few more hours
  3. customThe reaction mixture was quenched with an equal volume of saturated, aqueous sodium bicarbonate
  4. extractionextracted with DCM and EtOAc
  5. dry with materialThe combined organic extracts were dried over anhydrous sodium sulfate
  6. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-e65a094ab804419cb25f46edfa98ed58
Quelldatensatz
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09174981B2

Notizen zur Reaktion

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