Acetic Acid → HCID 69434767, compound

HRID 1890649Notes

Reaction equation

HRID 1890649 reaction equation
[CH2:1]([C:3]1[N:13]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([NH:21][CH2:22][CH:23]3[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]3)=[CH:17][CH:16]=2)[C:6]2=[N:7][C:8]([CH3:12])=[CH:9][C:10]([CH3:11])=[C:5]2[N:4]=1)[CH3:2].C(O)(=O)C.[O:33]1[CH2:38][CH2:37][C:36](=O)[CH2:35][CH2:34]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].[OH-].[Na+]>ClC(Cl)C>[CH2:1]([C:3]1[N:13]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([NH:21][CH2:22][CH:23]3[CH2:28][CH2:27][N:26]([CH:36]4[CH2:37][CH2:38][O:33][CH2:34][CH2:35]4)[CH2:25][CH2:24]3)=[CH:17][CH:16]=2)[C:6]2=[N:7][C:8]([CH3:12])=[CH:9][C:10]([CH3:11])=[C:5]2[N:4]=1)[CH3:2]

Participants

7

Reactant 5

HCID 176Acetic AcidHCID 14798Sodium HydroxideHCID 121599Tetrahydro-4H-pyran-4-oneHCID 5049666Sodium triacetoxyborohydrideHCID 23156185HCID 23156185, compound

Product 1

HCID 69434767HCID 69434767, compoundYield 44%

Reagents, catalysts & solvents 1

HCID 63651,1-DichloroethaneSolvent

Procedure

A solution of Compound 143 (0.166 g, 0.44 mmol) in dichloroethane was added with acetic acid (0.176 mL, 3.08 mmol) and tetrahydro-4-pyranone (0.224 mL, 2.42 mmol) followed by stirring for 20 minutes. The mixture was added with sodium triacetoxyborohydride (0.345 g, 1.63 mmol) followed by stirring at room temperature overnight. The reaction mixture was added with a 2 mol/L aqueous sodium hydroxide solution and extracted with chloroform three times. The organic layer was dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (chloroform:2 mol/L ammonia-methanol solution=7:1). The obtained crystals were recrystallized from ethanol-diisopropyl ether to obtain Compound 154 (44.2 mg, 0.093 mmol, 44%).

Workup

  1. stirringby stirring at room temperature overnight
  2. extractionextracted with chloroform three times
  3. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (chloroform:2 mol/L ammonia-methanol solution=7:1)
  6. customThe obtained crystals were recrystallized from ethanol-diisopropyl ether

Sources & evidence

ORD record
ord-c489360ada704fdcbdef282cb3e9a6ee
Source dataset
uspto-grants-2013_08
Patent number
US08507484B2

Reaction notes

Loading…