Triethylamine → HCID 178444653, compound

HRID 1649922Notes

Reaction equation

HRID 1649922 reaction equation
[O:1]1[CH2:6][CH2:5][N:4]([C:7]([O:9][C@@H:10]([CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[C:11]([OH:13])=O)=[O:8])[CH2:3][CH2:2]1.[NH2:21][C@H:22]([C:29]([NH:31][C@H:32]([C@@H:40]([OH:46])[CH2:41][CH2:42][CH:43]([CH3:45])[CH3:44])[CH2:33][CH:34]1[CH2:39][CH2:38][CH2:37][CH2:36][CH2:35]1)=[O:30])[CH2:23][C:24]1[N:28]=[CH:27][NH:26][CH:25]=1.C1(P(N=[N+]=[N-])(C2C=CC=CC=2)=O)C=CC=CC=1.C(N(CC)CC)C>CN(C)C=O>[O:1]1[CH2:2][CH2:3][N:4]([C:7]([O:9][C@@H:10]([CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[C:11]([NH:21][C@H:22]([C:29]([NH:31][C@H:32]([C@@H:40]([OH:46])[CH2:41][CH2:42][CH:43]([CH3:44])[CH3:45])[CH2:33][CH:34]2[CH2:39][CH2:38][CH2:37][CH2:36][CH2:35]2)=[O:30])[CH2:23][C:24]2[N:28]=[CH:27][NH:26][CH:25]=2)=[O:13])=[O:8])[CH2:5][CH2:6]1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 195075O-(N-Morpholinocarbonyl)-3-phenyllactic acidHCID 199401P,P-Diphenylphosphinic azideHCID 1784446552(S)-(L-histidyl)amino-1-cyclohexyl-3(S)-hydroxy-6-methylheptane

Product 1

HCID 178444653HCID 178444653, compoundYield 72.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Conditions

Temperature
0 °C

Procedure

To a mixture of 2(S)-morpholinocarbonyloxy-3-phenylpropionic acid (120 mg) and 2(S)-(L-histidyl)amino-1-cyclohexyl-3(S)-hydroxy-6-methylheptane (142 mg) in dry N,N-dimethylformamide (20 ml), which was cooled to 0° C., were added a solution of diphenyl phosphorylazide (108 mg) in dry N,N-dimethylformamide (5 ml) and triethylamine (40 mg). The mixture was stirred for 16 hours at ambient temperature. After evaporation of the solvent, the residue was dissolved in ethyl acetate (30 ml). The solution was washed with 1M sodium bicarbonate solution and water successively, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was purified with silica gel thin layer chromatography (chloroform:methanol, 6:1, V/V) to give 2(S)-[Nα -(2(S)-morpholinocarbonyloxy-3-phenylpropionyl)-L-histidyl]amino-1-cyclohexyl-3(S)-hydroxy-6-methylheptane (177 mg) as an amorphous powder.

Workup

  1. customAfter evaporation of the solvent
  2. dissolutionthe residue was dissolved in ethyl acetate (30 ml)
  3. washThe solution was washed with 1M sodium bicarbonate solution and water successively
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified with silica gel thin layer chromatography (chloroform:methanol, 6:1, V/V)

Sources & evidence

ORD record
ord-0756e347da3d40689f3b4304fb786165
Source dataset
uspto-grants-1990_05
Patent number
US04921855

Reaction notes

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