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Sodium triacetoxyborohydride → 7-(2-hydroxyethyl)-N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide

HRID 706636
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 706636
[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:25])=[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.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>CCO>[OH:25][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

4

Edukt 2

HCID 5049666Sodium triacetoxyborohydrideHCID 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 573874117-(2-hydroxyethyl)-N-(3-methyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamideAusbeute 76,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

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 (5 mg, 0.011 mmol) in 0.5 mL absolute EtOH was treated at ambient temperature with 3 equivalents of sodium triacetoxyborohydride. The reaction mixture was stirred overnight at ambient temperature, after which another 10 equivalents reducing agent were added. Stirring was continued until starting material was consumed. The reaction was quenched with excess saturated aqueous sodium bicarbonate solution, and extracted with DCM and EtOAc. The combined organic extracts were dried over anhydrous sodium sulfate, and concentrated. The crude product was subjected to preparative thin-layer chromatography on silica with 5% MeOH/DCM as eluent to afford 3.7 mg of product as a white solid. MS (ES+APCI) m/z=441 (M+H) detected.

Aufarbeitung

  1. additionwere added
  2. stirringStirring
  3. customwas consumed
  4. customThe reaction was quenched with excess saturated aqueous sodium bicarbonate solution
  5. extractionextracted with DCM and EtOAc
  6. dry with materialThe combined organic extracts were dried over anhydrous sodium sulfate
  7. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-6cf347216ad146d6889060b220265fd1
Quelldatensatz
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09174981B2

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