Acetic Acid → 2-(3,4-Dibenzyloxybenzyl)amino-5-chloro-alpha-(3-tert-butoxycarbonylaminomethylphenyl)benzyl alcohol

HRID 275878

Reaktionsgleichung

Reaktionsgleichung von HRID 275878
[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:35]=[C:36]([CH:39]=[CH:40][C:41]=1[O:42][CH2:43][C:44]1[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=1)[CH:37]=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:35]=[C:36]([CH:39]=[CH:40][C:41]=1[O:42][CH2:43][C:44]1[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=1)[CH2:37][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 795263,4-Bis(benzyloxy)benzaldehydeHCID 543588652-Amino-5-chloro-alpha-(3-tert-butoxycarbonylaminomethylphenyl)benzyl alcoholHCID 178511851HCID 178511851, Verbindung

Produkt 1

HCID 544238782-(3,4-Dibenzyloxybenzyl)amino-5-chloro-alpha-(3-tert-butoxycarbonylaminomethylphenyl)benzyl alcoholAusbeute 75,5 %

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 (0.6 g) and 3,4-dibenzyloxybenzaldehyde (0.55 g). To the solution were added acetic acid (0.12 g) and cyano sodium borohydride (0.13 g). The mixture was stirred for 1.5 hour at 60° C. The reaction mixture was concentrated, to which were added water (50 ml) and ethyl acetate (80 ml), followed by extraction. The organic layer was washed with water and dried over anhydrous sodium sulfate. The solvent was distilled off to leave 2-(3,4-dibenzyloxybenzyl)amino-5-chloro-α-(3-tert-butoxycarbonylaminomethylphenyl)benzyl alcohol (0.83 g) as colorless crystals, m.p.: 118-120° C.

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated, to which
  2. additionwere added water (50 ml) and ethyl acetate (80 ml)
  3. extractionfollowed by extraction
  4. washThe organic layer was washed with water
  5. dry with materialdried over anhydrous sodium sulfate
  6. distillationThe solvent was distilled off

Quellen und Nachweise

ORD-Eintrag
ord-f1156755ca1643af932a9577860a226c
Quelldatensatz
uspto-grants-2002_03
Patentnummer
US06352982B1

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