1,2-Dichloroethane → HCID 69284015, compound

HRID 84823Notes

Reaction equation

HRID 84823 reaction equation
[C:1]([NH:8][C@@H:9]([C:17]([OH:19])=O)[CH2:10][CH:11]1[CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].C1C=C2[N:26]=NN(O)C2=CC=1.O.C(Cl)CCl.[NH4+].[OH-]>CN(C=O)C.CCOC(C)=O.O>[NH2:26][C:17](=[O:19])[C@H:9]([NH:8][C:1](=[O:2])[O:3][C:4]([CH3:7])([CH3:6])[CH3:5])[CH2:10][CH:11]1[CH2:16][CH2:15][CH2:14][CH2:13][CH2:12]1

Participants

8

Reactant 4

HCID 111,2-DichloroethaneHCID 14923Ammonium HydroxideHCID 2755927(2R)-2-{[(tert-butoxy)carbonyl]amino}-3-cyclohexylpropanoic acidHCID 27960291-Hydroxybenzotriazole hydrate

Product 1

HCID 69284015HCID 69284015, compoundYield 91.9%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of N-Boc-β-cyclohexyl-D-alanine (1.00 g, 3.69 mmol) and HOBt hydrate (0.678 g, 4.43 mmol) in DMF (10 mL), EDC (0.850 g, 4.43 mmol) was added. The mixture was stirred for 60 min. Then conc. NH4OH (1.00 mL, ˜14.0 mmol) was added. It was stirred for 18 h. Water and EtOAc were added. The organic phase was separated, washed with 5% NaHCO3, dried over Na2SO4, concentrated in vacuo to give (R)-tert-butyl 1-amino-3-cyclohexyl-1-oxopropan-2-ylcarbamate as a white solid (0.917 g).

Workup

  1. stirringIt was stirred for 18 h
  2. customThe organic phase was separated
  3. washwashed with 5% NaHCO3
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-1b762bd07a644c27995447681244cbd4
Source dataset
uspto-grants-2014_09
Patent number
US08846928B2

Reaction notes

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