Cyclohexylamine → HCID 10545489, compound

HRID 1974911Notes

Reaction equation

HRID 1974911 reaction equation
[C:1]([CH2:4][C@@H:5]([CH2:16][CH:17]([CH3:19])[CH3:18])[C:6]([O:8][CH2:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)=[O:7])([OH:3])=O.[CH:20]1([NH2:26])[CH2:25][CH2:24][CH2:23][CH2:22][CH2:21]1>C(Cl)Cl>[CH:20]1([NH:26][C:1]([CH2:4][C@@H:5]([CH2:16][CH:17]([CH3:19])[CH3:18])[C:6]([O:8][CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[O:7])=[O:3])[CH2:25][CH2:24][CH2:23][CH2:22][CH2:21]1

Participants

4

Reactant 2

HCID 7965CyclohexylamineHCID 22874407HCID 22874407, compound

Product 1

HCID 10545489HCID 10545489, compoundYield 59.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of benzyl (2R)-2-carboxymethyl-4-methylvalerate (527 mg) and cyclohexylamine (238 mg) in methylene chloride (10 ml) was added WSCD·HCl (460 mg) at room temperature. After being stirred overnight, the mixture was concentrated in vacuo and the residue was dissolved in ethyl acetate (30 ml). The solution was washed with 5% HCl, water, saturated sodium bicarbonate and water, dried over magnesium sulfate and evaporated in vacuo. The residue was triturated with n-hexane to give benzyl (2R)-2-(cyclohexylcarbamoylmethyl)-4-methylvalerate (410 mg).

Workup

  1. concentrationthe mixture was concentrated in vacuo
  2. dissolutionthe residue was dissolved in ethyl acetate (30 ml)
  3. washThe solution was washed with 5% HCl, water, saturated sodium bicarbonate and water
  4. dry with materialdried over magnesium sulfate
  5. customevaporated in vacuo
  6. customThe residue was triturated with n-hexane

Sources & evidence

ORD record
ord-2b3aa30ed8504a379a7d1095654678d4
Source dataset
uspto-grants-1994_02
Patent number
US05284828

Reaction notes

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