Trifluoroacetic acid → (2E)-5-Amino-N-((1R)-1-(N-((1R)-1-benzyl-2-((methylsulfonyl)amino)ethyl)-N-methylcarbamoyl)-2-(2-naphthyl)ethyl)-5-methyl-N-methylhex-2-enamide

HRID 495837Notes

Reaction equation

HRID 495837 reaction equation
C(OC(=O)[NH:7][C:8]([CH3:47])([CH3:46])[CH2:9]/[CH:10]=[CH:11]/[C:12](=[O:45])[N:13]([C@@H:15]([C:27](=[O:44])[N:28]([C@H:30]([CH2:37][C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1)[CH2:31][NH:32][S:33]([CH3:36])(=[O:35])=[O:34])[CH3:29])[CH2:16][C:17]1[CH:26]=[CH:25][C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[CH:18]=1)[CH3:14])(C)(C)C.FC(F)(F)C(O)=O>ClCCl>[NH2:7][C:8]([CH3:47])([CH3:46])[CH2:9]/[CH:10]=[CH:11]/[C:12]([N:13]([C@@H:15]([C:27](=[O:44])[N:28]([C@H:30]([CH2:37][C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1)[CH2:31][NH:32][S:33]([CH3:36])(=[O:35])=[O:34])[CH3:29])[CH2:16][C:17]1[CH:26]=[CH:25][C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[CH:18]=1)[CH3:14])=[O:45]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 59057141(3E)-4-(N-((1R)-1-(N-((1R)-1-benzyl-2-(methylsulfonylamino)ethyl)-N-methylcarbamoyl)-2-(2-naphthyl)ethyl)-N-methylcarbamoyl)-1,1-dimethylbut-3-enylcarbamic acid tert-butyl ester

Product 1

HCID 10483304(2E)-5-Amino-N-((1R)-1-(N-((1R)-1-benzyl-2-((methylsulfonyl)amino)ethyl)-N-methylcarbamoyl)-2-(2-naphthyl)ethyl)-5-methyl-N-methylhex-2-enamideYield 71.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

(3E)-4-(N-((1R)-1-(N-((1R)-1-Benzyl-2-(methylsulfonylamino)ethyl)-N-methylcarbamoyl)-2-(2-naphthyl)ethyl)-N-methylcarbamoyl)-1,1-dimethylbut-3-enylcarbamic acid tert-butyl ester (729 mg, 1.07 mmol) was dissolved in dichloromethane (3 ml). The solution was cooled to 0° C. Trifluoroacetic acid (3 ml) was added. The reaction mixture was stirred for 15 min at 0° C. The solvents were removed in vacuo at 20° C. The residue was dissolved in dichloromethane (100 ml) and the solvent was removed in vacuo. The latter procedure was repeated two times. The crude product was purified by flash chromatography on silica (60 g), using dichloromethanelmethanol/25% aqueous ammonia as eluent, to give 440 mg of the title compound as free base.

Workup

  1. customThe solvents were removed in vacuo at 20° C
  2. dissolutionThe residue was dissolved in dichloromethane (100 ml)
  3. customthe solvent was removed in vacuo
  4. customThe crude product was purified by flash chromatography on silica (60 g)

Sources & evidence

ORD record
ord-cfc1901b7791419784bcb73ef10c0066
Source dataset
uspto-grants-2005_09
Patent number
US06939880B2

Reaction notes

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