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1,2-Dichloroethane → benzyl N-[4-[[[2-(2,6-difluoro-3-hydroxyphenyl)-2-ethoxyacetyl]amino]methyl]benzenecarboximidoyl]carbamate

HRID 1247383
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1247383
[F:1][C:2]1[C:7]([OH:8])=[CH:6][CH:5]=[C:4]([F:9])[C:3]=1[CH:10]([O:14][CH2:15][CH3:16])[C:11]([OH:13])=O.Cl.Cl.[CH2:19]([O:26][C:27](=[O:39])[NH:28][C:29]([C:31]1[CH:36]=[CH:35][C:34]([CH2:37][NH2:38])=[CH:33][CH:32]=1)=[NH:30])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1.ON1C2C=CC=CC=2N=N1.C(Cl)CCl>CN(C=O)C.C(N(CC)CC)C>[CH2:19]([O:26][C:27](=[O:39])[NH:28][C:29]([C:31]1[CH:32]=[CH:33][C:34]([CH2:37][NH:38][C:11](=[O:13])[CH:10]([C:3]2[C:4]([F:9])=[CH:5][CH:6]=[C:7]([OH:8])[C:2]=2[F:1])[O:14][CH2:15][CH3:16])=[CH:35][CH:36]=1)=[NH:30])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 111,2-DichloroethaneHCID 757711-HydroxybenzotriazoleHCID 21905416(RS)-(2,6-difluoro-3-hydroxy-phenyl)-ethoxy-acetic acidHCID 141089245Carbamic acid, [[4-(aminomethyl)phenyl]iminomethyl]-, phenylmethyl ester, dihydrochloride

Produkt 1

HCID 140474512benzyl N-[4-[[[2-(2,6-difluoro-3-hydroxyphenyl)-2-ethoxyacetyl]amino]methyl]benzenecarboximidoyl]carbamate
Ausbeute 40,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

To a solution of (RS)-(2,6-difluoro-3-hydroxy-phenyl)-ethoxy-acetic acid (12.0 g) in DMF (600 ml) was added [(4-aminomethyl-phenyl)-imino-methyl]-carbamic acid benzyl ester dihydrochloride [Prepared according to Ch. Lila, Ph. Gloanec, L. Cadet, Y. Hervé, J. Fournier, F. Leborgne, T. J. Verbeuren, G. De Nanteuil, Synthetic Communications 1998, 28, 23, 4419–4429] (18.2 g) and 1-hydroxybenzotriazole. The mixture was cooled to 0–5° C. and EDC (15.8 g) and trietylamine (62 ml) were added. The mixture was stirred 1 h at 0–5° C. and over night at rt. The solvent was evaporated and the residue was dissolved in CH2Cl2 and washed with H2O (600 ml), and brine (300 ml). The aqueous layers were extracted with more CH2Cl2 (2×300 ml). The combined organic layers were dried (Na2SO4) and the solvent was evaporated. CC(CH2Cl2/2 N NH3 in MeOH 97:3 to 19:1) afforded 10.2 g (40%) of (RS)-[(4-{[2-(2,6-difluoro-3-hydroxy-phenyl)-2-ethoxy-acetylamino]-methyl}-phenyl)-imino-methyl]-carbamic acid benzyl ester. White foam. MS 498.2 ([M+H]+).

Aufarbeitung

  1. temperatureThe mixture was cooled to 0–5° C.
  2. customThe solvent was evaporated
  3. dissolutionthe residue was dissolved in CH2Cl2
  4. washwashed with H2O (600 ml), and brine (300 ml)
  5. extractionThe aqueous layers were extracted with more CH2Cl2 (2×300 ml)
  6. dry with materialThe combined organic layers were dried (Na2SO4)
  7. customthe solvent was evaporated

Quellen und Nachweise

ORD-Eintrag
ord-77f1184b34e74822b2b5e9117108ebd0
Quelldatensatz
uspto-grants-2006_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07129238B2

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