3-(4-Hydroxyphenyl)propionic acid → 2-[3-(4-Hydroxyphenyl)propionylamino]acetic acid ethyl ester

HRID 1178069

Reaktionsgleichung

Reaktionsgleichung von HRID 1178069
CCN(C(C)C)C(C)C.[OH:10][C:11]1[CH:16]=[CH:15][C:14]([CH2:17][CH2:18][C:19]([OH:21])=O)=[CH:13][CH:12]=1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.Cl.[CH2:45]([O:47][C:48](=[O:51])[CH2:49][NH2:50])[CH3:46]>CN(C=O)C.O>[CH2:45]([O:47][C:48](=[O:51])[CH2:49][NH:50][C:19](=[O:21])[CH2:18][CH2:17][C:14]1[CH:13]=[CH:12][C:11]([OH:10])=[CH:16][CH:15]=1)[CH3:46]

Komponenten

8

Edukt 5

HCID 103943-(4-Hydroxyphenyl)propionic acidHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 2723640Glycine ethyl ester, hydrochlorideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride

Produkt 1

HCID 102641582-[3-(4-Hydroxyphenyl)propionylamino]acetic acid ethyl esterAusbeute 130 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

DIPEA (390 mg, 0.52 mL, 3.02 mmol) was added to a stirred solution of 3-[4-hydroxy phenyl]propionic acid (100 mg, 0.60 mmol) in DMF (10 mL). HOBT (90 mg, 0.67 mmol) and EDCI.HCl (290 mg, 1.51 mmol) were added at room temperature. After 2 minutes glycine ethyl ester hydrochloride (100 mg, 0.72 mmol) was added. The resulting mixture was stirred at room temperature for 48 hours. Water was then added, and the product was extracted with EtOAc. The organic layer was washed with brine, dried over Na2SO4 and concentrated under reduced pressure to afford 196 mg of [3-(4-hydroxy-phenyl) propionylamino]-acetic acid ethyl ester. 1H NMR (CDCL3): δ 7 (d, 2H), 6.65 (d, 2H), 6.0 (bs, 1H), 4.15 (q, 2H), 4.0 (d, 2H), 3.5 (s, 2H), 2.8 (t, 2H), 2.45 (t, 2H), 1.2 (t, 3H), LC-MS purity: 68.23%.

Aufarbeitung

  1. extractionthe product was extracted with EtOAc
  2. washThe organic layer was washed with brine
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-d37264a6fbb144a8a5e7942dea211699
Quelldatensatz
uspto-grants-2010_11
Patentnummer
US07842696B2

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