Triethylamine → ethyl 3-methoxy-4-[2-[3-methoxy-4-[N'-(2-methylphenyl)ureido]phenylacetyl]ethylaminoethoxy]benzoate

HRID 354475Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 354475
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:11]=[CH:12][C:13]=1[O:14][CH2:15][CH2:16][NH:17][CH2:18][CH3:19])[C:6]([O:8][CH2:9][CH3:10])=[O:7].[CH3:20][O:21][C:22]1[CH:23]=[C:24]([CH2:39][C:40](O)=[O:41])[CH:25]=[CH:26][C:27]=1[NH:28][C:29]([NH:31][C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=1[CH3:38])=[O:30].CCN(CC)CC>CN(C=O)C.CCOC(C)=O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:11]=[CH:12][C:13]=1[O:14][CH2:15][CH2:16][NH:17][CH2:18][CH2:19][C:40](=[O:41])[CH2:39][C:24]1[CH:25]=[CH:26][C:27]([NH:28][C:29]([NH:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=2[CH3:38])=[O:30])=[C:22]([O:21][CH3:20])[CH:23]=1)[C:6]([O:8][CH2:9][CH3:10])=[O:7]

Komponenten

6

Edukt 3

HCID 8471TriethylamineHCID 114498403-Methoxy-4-o-tolylureidophenylacetic acidHCID 23512488Ethyl 3-methoxy-4-(2-ethylaminoethoxy)benzoate

Produkt 1

HCID 69332900ethyl 3-methoxy-4-[2-[3-methoxy-4-[N'-(2-methylphenyl)ureido]phenylacetyl]ethylaminoethoxy]benzoateAusbeute 93 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a stirred solution of ethyl 3-methoxy-4-(2-ethylaminoethoxy)benzoate (290 mg, 1.08 mmol) and pentafluorophenyl ester of 3-methoxy-4-[N′-(2-methylphenyl)ureido]phenylacetic acid (502 mg, 1.05 mmol) in DMF (7 mL) was added Et3N (250 μl, 1.79 mmol), and the resulting mixture was stirred overnight. The mixture was diluted with EtOAc, washed with 0.5 N HCl, brine, and dried over Na2SO4. The solvent was evaporated and the residue was purified by column chromatography on silica-gel with CHCl3—MeOH (40:1, v/v) as an eluent to give 550 mg (93%) ethyl 3-methoxy-4-[2-[3-methoxy-4-[N′-(2-methylphenyl)ureido]phenylacetyl]ethylaminoethoxy]benzoate as an amorphous solid. 1H-NMR (CDCl3) d 1.11-1.18 (m, 3 H), 1.37-1.41 (m, 3 H), 2.30 (s, 3 H), 3.47-3.53 (m, 2 H), 3.61-3.75 (m, 7 H), 3.84 (s, 3 H), 4.03-4.27 (m, 2 H), 4.33-4.39 (m, 2 H), 6.34-8.07 (series of m, total 12 H).

Aufarbeitung

  1. washwashed with 0.5 N HCl, brine
  2. dry with materialdried over Na2SO4
  3. customThe solvent was evaporated
  4. customthe residue was purified by column chromatography on silica-gel with CHCl3—MeOH (40:1

Quellen und Nachweise

ORD-Eintrag
ord-b4f09340a11043eab3361b0f45bcc2bc
Quelldatensatz
uspto-grants-2004_06
Patentnummer
US06756378B2

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