Acetic Acid → HCID 53870183, compound

HRID 275881Notes

Reaction equation

HRID 275881 reaction equation
[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.[F:26][C:27]([F:37])([F:36])[C:28]1[CH:35]=[CH:34][C:31]([CH:32]=O)=[CH:30][CH:29]=1.C(O)(=O)C.[BH4-].C([Na])#N>CO>[Cl:25][C:22]1[CH:23]=[CH:24][C:2]([NH:1][CH2:32][C:31]2[CH:30]=[CH:29][C:28]([C:27]([F:26])([F:36])[F:37])=[CH:35][CH:34]=2)=[C:3]([CH:21]=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

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 679964-(Trifluoromethyl)benzaldehydeHCID 543588652-Amino-5-chloro-alpha-(3-tert-butoxycarbonylaminomethylphenyl)benzyl alcoholHCID 178511851HCID 178511851, compound

Product 1

HCID 53870183HCID 53870183, compoundYield 83.6%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Conditions

Temperature
60 °C

Procedure

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 4-trifluoromethylbenzaldehyde (0.28 g). To the solution were added acetic acid (0.1 g) and cyano sodium borohydride (0.17 g). The mixture was stirred for 40 minutes at 60° C. The reaction mixture was concentrated, to which were added ethyl acetate (30 ml) and water (20 ml), followed by extraction. The organic layer was 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 5-chloro-2-(4-trifluoromethylbenzylamino)-α-(3-tert-b-utoxycarbonylaminomethylphenyl)benzyl alcohol (0.6 g) as a colorless oily product.

Workup

  1. concentrationThe reaction mixture was concentrated, to which
  2. additionwere added ethyl acetate (30 ml) and water (20 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
  7. customthe residue was purified by means of a silica gel column chromatography

Sources & evidence

ORD record
ord-90a748589c9243b386e93c9e6cfeb13c
Source dataset
uspto-grants-2002_03
Patent number
US06352982B1

Reaction notes

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