Triethylamine → Ethyl 2-ethyl-3-[2'-(t-butoxycarbonyl)biphenyl-4-yl]methyl-5-ethoxycarbonylacetyl-4,5,6,7-tetrahydroimidazo[4,5-c]pyridine-4-carboxylate

HRID 21873

Reaktionsgleichung

Reaktionsgleichung von HRID 21873
[CH2:1]([C:3]1[N:16]([CH2:17][C:18]2[CH:23]=[CH:22][C:21]([C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=3[C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])=[CH:20][CH:19]=2)[C:6]2[CH:7]([C:11]([O:13][CH2:14][CH3:15])=[O:12])[NH:8][CH2:9][CH2:10][C:5]=2[N:4]=1)[CH3:2].[C:37]([O:43][CH2:44][CH3:45])(=[O:42])[CH2:38][C:39]([O-])=[O:40].Cl.CN(C)CCCN=C=NCC.C(N(CC)CC)C>ClCCl>[CH2:1]([C:3]1[N:16]([CH2:17][C:18]2[CH:19]=[CH:20][C:21]([C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=3[C:30]([O:32][C:33]([CH3:34])([CH3:36])[CH3:35])=[O:31])=[CH:22][CH:23]=2)[C:6]2[CH:7]([C:11]([O:13][CH2:14][CH3:15])=[O:12])[N:8]([C:39](=[O:40])[CH2:38][C:37]([O:43][CH2:44][CH3:45])=[O:42])[CH2:9][CH2:10][C:5]=2[N:4]=1)[CH3:2]

Komponenten

6

Edukt 4

HCID 8471TriethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 3595298Propanedioic acid, monoethyl esterHCID 19932990Ethyl 2-ethyl-3-[2'-(t-butoxycarbonyl)biphenyl-4-yl]methyl-4,5,6,7-tetrahydroimidazo[4,5-c]pyridine-4-carboxylate

Produkt 1

HCID 15291711Ethyl 2-ethyl-3-[2'-(t-butoxycarbonyl)biphenyl-4-yl]methyl-5-ethoxycarbonylacetyl-4,5,6,7-tetrahydroimidazo[4,5-c]pyridine-4-carboxylateAusbeute 74 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A solution of ethyl 2-ethyl-3-[2'-(t-butoxycarbonyl)biphenyl-4-yl]methyl-4,5,6,7-tetrahydroimidazo[4,5-c]pyridine-4-carboxylate (1.72 g), monoethyl malonate (0.94 g), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (1.02 g), triethylamine (1.78 g) in dichloromethane (20 ml) is stirred overnight at room temperature. The reaction mixture is washed with water and dried over sodium sulfate and then evaporated. The residue is purified by silica gel column chromatography (solvent; chloroform/methanol) to give ethyl 2-ethyl-3-[2'-(t-butoxycarbonyl)biphenyl-4-yl]methyl-5-ethoxycarbonylacetyl-4,5,6,7-tetrahydroimidazo[4,5-c]pyridine-4-carboxylate (1.57 g) as an oil. NMR (CDCl3) δ: 1.12 (3H, t), 1.28 (9H, s), 5.35 (2H, q), 6.00 (1H, s)

Aufarbeitung

  1. washThe reaction mixture is washed with water
  2. dry with materialdried over sodium sulfate
  3. customevaporated
  4. customThe residue is purified by silica gel column chromatography (solvent; chloroform/methanol)

Quellen und Nachweise

ORD-Eintrag
ord-d275164c84fe470997d663ae644d936b
Quelldatensatz
uspto-grants-1995_06
Patentnummer
US05424316

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