Cyclohexanone → HCID 86603755, compound

HRID 226449Notes

Reaction equation

HRID 226449 reaction equation
Cl.Cl.[C:3]([O:7][C:8]([N:10]([C@@H:24]1[CH2:28][CH2:27][NH:26][CH2:25]1)[C:11]1[N:16]=[CH:15][C:14](/[CH:17]=[CH:18]/[C:19]([O:21][CH2:22][CH3:23])=[O:20])=[CH:13][CH:12]=1)=[O:9])([CH3:6])([CH3:5])[CH3:4].[C:29]1(=O)[CH2:34][CH2:33][CH2:32][CH2:31][CH2:30]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(N(CC)C(C)C)(C)C.[Cl-].[NH4+]>ClCCCl.C(OCC)(=O)C>[C:3]([O:7][C:8]([N:10]([C@@H:24]1[CH2:28][CH2:27][N:26]([CH:29]2[CH2:34][CH2:33][CH2:32][CH2:31][CH2:30]2)[CH2:25]1)[C:11]1[N:16]=[CH:15][C:14](/[CH:17]=[CH:18]/[C:19]([O:21][CH2:22][CH3:23])=[O:20])=[CH:13][CH:12]=1)=[O:9])([CH3:4])([CH3:5])[CH3:6]

Participants

8

Reactant 5

HCID 7967CyclohexanoneHCID 25517Ammonium ChlorideHCID 81531DiisopropylethylamineHCID 5049666Sodium triacetoxyborohydrideHCID 86603639ethyl (2E)-3-(6-{(tert-butoxycarbonyl)[(3R)-3-pyrrolidinyl]amino}-3-pyridyl)acrylate dihydrochloride

Product 1

HCID 86603755HCID 86603755, compoundYield 129.3%

Reagents, catalysts & solvents 2

HCID 111,2-DichloroethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a mixture of ethyl (2E)-3-(6-{(tert-butoxycarbonyl)[(3R)-3-pyrrolidinyl]amino}-3-pyridinyl)acrylate dihydrochloride (256 mg) and cyclohexanone (64 mg) in 1,2-dichloroethane (5 mL) was added sodium triacetoxyborohydride (253 mg) and N,N-diisopropylethylamine (0.21 mL), and the mixture was stirred at room temperature for 2 hours. To the resultant was added saturated aqueous ammonium chloride and ethyl acetate, and the mixture was stirred for 20 min. The organic phase was separated, washed with brine and dried over Na2SO4, filtered, and concentrated in vacuo. The residue was purified by silica gel column chromatography (chloroform/methanol=95/5 v/v) to give ethyl (2E)-3-(6-{(tert-butoxycarbonyl)[(3R)-1-cyclohexyl-3-pyrrolidinyl]amino}-3-pyridinyl)acrylate (338 mg) as a pale yellow foam.

Workup

  1. stirringthe mixture was stirred for 20 min
  2. customThe organic phase was separated
  3. washwashed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by silica gel column chromatography (chloroform/methanol=95/5 v/v)

Sources & evidence

ORD record
ord-bd04a0b3ed7744c2932e97b2fe5b5b68
Source dataset
uspto-grants-2009_07
Patent number
US07557127B2

Reaction notes

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