Sodium triacetoxyborohydride → HCID 59331327, compound

HRID 1881989Notes

Reaction equation

HRID 1881989 reaction equation
[CH:1]1([S:4]([C:7]2[CH:12]=[CH:11][C:10]([CH:13]([C:21]3[NH:25][C:24]([C:26]4[N:31]=[CH:30][C:29]([CH:32]=O)=[CH:28][CH:27]=4)=[CH:23][CH:22]=3)[CH2:14][CH:15]3[CH2:20][CH2:19][O:18][CH2:17][CH2:16]3)=[CH:9][CH:8]=2)(=[O:6])=[O:5])[CH2:3][CH2:2]1.[C:34]([N:37]1[CH2:42][CH2:41][NH:40][C@@H:39]([CH3:43])[CH2:38]1)(=[O:36])[CH3:35].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl.C(OCC)(=O)C>[C:34]([N:37]1[CH2:42][CH2:41][N:40]([CH2:32][C:29]2[CH:30]=[N:31][C:26]([C:24]3[NH:25][C:21]([CH:13]([C:10]4[CH:9]=[CH:8][C:7]([S:4]([CH:1]5[CH2:3][CH2:2]5)(=[O:6])=[O:5])=[CH:12][CH:11]=4)[CH2:14][CH:15]4[CH2:16][CH2:17][O:18][CH2:19][CH2:20]4)=[CH:22][CH:23]=3)=[CH:27][CH:28]=2)[C@@H:39]([CH3:43])[CH2:38]1)(=[O:36])[CH3:35]

Participants

6

Reactant 3

HCID 5049666Sodium triacetoxyborohydrideHCID 114350081-[(3S)-3-Methyl-1-piperazinyl]ethanoneHCID 593314196-(5-{1-[4-(cyclopropylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl}-1H-pyrrol-2-yl)pyridine-3-carbaldehyde

Product 1

HCID 59331327HCID 59331327, compoundYield 72.3%

Reagents, catalysts & solvents 2

HCID 111,2-DichloroethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 6-(5-{1-[4-(cyclopropylsulfonyl)phenyl]-2-(tetrahydro-2H-pyran-4-yl)ethyl}-1H-pyrrol-2-yl)pyridine-3-carbaldehyde (200 mg) in 1,2-dichloroethane (3 mL) was added (3S)-1-acetyl-3-methylpiperazine (140 mg), and the mixture was stirred at room temperature for 30 min. To the reaction mixture was added sodium triacetoxyborohydride (273 mg), and the mixture was stirred at room temperature for 3 hr. The reaction mixture was diluted with ethyl acetate, washed with saturated aqueous sodium hydrogen carbonate and saturated brine, dried (MgSO4) and concentrated. The residue was subjected to basic silica gel column chromatography, and the title compound (184 mg, yield 72%) was obtained as a colorless amorphous solid from a fraction eluted with ethyl acetate. MS: 591 (MH+).

Workup

  1. stirringthe mixture was stirred at room temperature for 3 hr
  2. washwashed with saturated aqueous sodium hydrogen carbonate and saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-5e89cd320dbb4d3ca95ba498960bf77c
Source dataset
uspto-grants-2012_11
Patent number
US08318746B2

Reaction notes

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