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

반응식

HRID 21873 반응식
[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]

참가 물질

6

반응물 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

생성물 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-carboxylate수율 74%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

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)

후처리

  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)

출처 및 근거

ORD 기록
ord-d275164c84fe470997d663ae644d936b
출처 데이터셋
uspto-grants-1995_06
특허 번호
US05424316

연결된 노트

불러오는 중…