2-Ethyl-4-Methyl-1H-Imidazole-5-Carbaldehyde → HCID 178437668, Verbindung

HRID 493112Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 493112
[C:1]([C:5]1[CH:10]=[CH:9][C:8]([C:11]2[NH:25][C:14]3=[N:15][CH:16]=[CH:17][C:18]([N:19]4[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]4)=[C:13]3[N:12]=2)=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[CH2:26]([C:28]1[NH:29][C:30]([CH3:35])=[C:31]([CH:33]=O)[N:32]=1)[CH3:27].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>CN1C(=O)CCC1>[C:1]([C:5]1[CH:10]=[CH:9][C:8]([C:11]2[NH:25][C:14]3=[N:15][CH:16]=[CH:17][C:18]([N:19]4[CH2:20][CH2:21][N:22]([CH2:35][C:30]5[N:29]=[C:28]([CH2:26][CH3:27])[NH:32][C:31]=5[CH3:33])[CH2:23][CH2:24]4)=[C:13]3[N:12]=2)=[CH:7][CH:6]=1)([CH3:4])([CH3:2])[CH3:3]

Komponenten

5

Edukt 3

HCID 27958842-Ethyl-4-Methyl-1H-Imidazole-5-CarbaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 178440762HCID 178440762, Verbindung

Produkt 1

HCID 178437668HCID 178437668, VerbindungAusbeute 33,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 13387N-methyl-2-pyrrolidoneLösungsmittel

Versuchsvorschrift

2-(4-tert-Butyl-phenyl)-7-piperazin-1-yl imidazo[4,5-b]pyridine (7) (50 mg, 0.15 mmol) and 2-ethyl-5-methyl-1H-imidazole-4-carbaldehyde (21 mg, 0.15 mmol) were dissolved in NMP (4 ml) with sodium triacetoxyborohydride (64 mg, 0.30 mmol). The reaction mixture was allowed to stir for 18 hours under nitrogen. It was judged complete by MS, and purified by HPLC Method E to yield the title product 8 (23 mg (33%), 0.05 mmol). 1H NMR (DMSO-d6): δ 8.09 (d, J=8.3 Hz, 3H), 7.59 (d, J=8.3 Hz, 2H), 6.80 (s, 1H), 3.80-4.00 (m, 8H), 2.84 (q, J=7.7 Hz, 2H), 2.25 (s, 3H), 1.31 (m, 12H). The product 8 was determined to be 96% pure by analytical HPLC. MS (ESI-POS): [M+H]+=458; MS(ESI-NEG):[M−H]−=456.

Aufarbeitung

  1. custompurified by HPLC Method E

Quellen und Nachweise

ORD-Eintrag
ord-69d3d289c70d4f3d95eb0155c4fecf03
Quelldatensatz
uspto-grants-2009_05
Patentnummer
US07534796B2

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