Acetic Acid → 2-(2-Benzyloxybenzylamino)-5-chloro-alpha-(3-tert-butoxycarbonylaminomethylphenyl)benzyl alcohol

HRID 275879

Reaktionsgleichung

Reaktionsgleichung von HRID 275879
[NH2:1][C:2]1[CH:24]=[CH:23][C:22]([Cl:25])=[CH:21][C:3]=1[CH:4]([OH:20])[C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([CH2:11][NH:12][C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[CH:6]=1.[CH2:26]([O:33][C:34]1[CH:41]=[CH:40][CH:39]=[CH:38][C:35]=1[CH:36]=O)[C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1.C(O)(=O)C.[BH4-].C([Na])#N>CO>[CH2:26]([O:33][C:34]1[CH:41]=[CH:40][CH:39]=[CH:38][C:35]=1[CH2:36][NH:1][C:2]1[CH:24]=[CH:23][C:22]([Cl:25])=[CH:21][C:3]=1[CH:4]([OH:20])[C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([CH2:11][NH:12][C:13]([O:15][C:16]([CH3:18])([CH3:19])[CH3:17])=[O:14])[CH:6]=1)[C:27]1[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=1

Komponenten

6

Edukt 4

HCID 176Acetic AcidHCID 3447842-(Benzyloxy)benzaldehydeHCID 543588652-Amino-5-chloro-alpha-(3-tert-butoxycarbonylaminomethylphenyl)benzyl alcoholHCID 178511851HCID 178511851, Verbindung

Produkt 1

HCID 542535092-(2-Benzyloxybenzylamino)-5-chloro-alpha-(3-tert-butoxycarbonylaminomethylphenyl)benzyl alcoholAusbeute 136,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

In methanol (20 ml) were dissolved 2-amino-5-chloro-α-(3-tert-butoxycarbonylaminomethylphenyl)benzyl alcohol (0.5 g) obtained in Example 1 (2) and 2-benzyloxybenzaldehyde (0.7 g). To the solution were added acetic acid (0.15 g) and cyano sodium borohydride (0.16 g). The mixture was stirred for 40 minutes at 60° C. The reaction mixture was concentrated, to which were added water (50 ml) and ethyl acetate (60 ml), followed by subjecting the mixture to extraction. The organic layer was separated, washed with water and dried over anhydrous sodium sulfate. The solvent was distilled off, and the residue was purified by means of a silica gel column chromatography to give 2-(2-benzyloxybenzylamino)-5-chloro-α-(3-tert-butoxycarbonylaminomethylphenyl)benzyl alcohol (1.05 g) as a colorless oily product.

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated, to which
  2. additionwere added water (50 ml) and ethyl acetate (60 ml)
  3. extractionto extraction
  4. customThe organic layer was separated
  5. washwashed with water
  6. dry with materialdried over anhydrous sodium sulfate
  7. distillationThe solvent was distilled off
  8. customthe residue was purified by means of a silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-e03e120bc9604b8b8cbd75e46166267b
Quelldatensatz
uspto-grants-2002_03
Patentnummer
US06352982B1

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