Benzoyl Peroxide → methyl (1S)-1-({[(1S,2S,4S)-1-benzyl-2-[1-(ethylthio)ethoxy]-4-{[N-(methoxycarbonyl)-3-methyl-L-valyl]amino}-5-(4-pyridin-2-ylphenyl)pentyl]amino}carbonyl)-2,2-dimethylpropylcarbamate

HRID 1174420Notes

Reaction equation

HRID 1174420 reaction equation
[CH3:1][O:2][C:3](=[O:51])[NH:4][C@@H:5]([C:47]([CH3:50])([CH3:49])[CH3:48])[C:6](=[O:46])[NH:7][C@@H:8]([CH2:39][C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1)[C@@H:9]([OH:38])[CH2:10][C@H:11]([CH2:25][C:26]1[CH:31]=[CH:30][C:29]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][N:33]=2)=[CH:28][CH:27]=1)[NH:12][C:13](=[O:24])[C@H:14]([C:20]([CH3:23])([CH3:22])[CH3:21])[NH:15][C:16](=[O:19])[O:17][CH3:18].[CH2:52]([S:54][CH2:55][CH3:56])[CH3:53].C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>C(#N)C.C(OCC)(=O)C>[CH2:39]([C@H:8]([NH:7][C:6]([C@@H:5]([NH:4][C:3](=[O:51])[O:2][CH3:1])[C:47]([CH3:50])([CH3:49])[CH3:48])=[O:46])[C@@H:9]([O:38][CH:52]([S:54][CH2:55][CH3:56])[CH3:53])[CH2:10][C@@H:11]([NH:12][C:13](=[O:24])[C@H:14]([C:20]([CH3:23])([CH3:22])[CH3:21])[NH:15][C:16]([O:17][CH3:18])=[O:19])[CH2:25][C:26]1[CH:31]=[CH:30][C:29]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][N:33]=2)=[CH:28][CH:27]=1)[C:40]1[CH:41]=[CH:42][CH:43]=[CH:44][CH:45]=1

Participants

6

Reactant 3

HCID 7187Benzoyl PeroxideHCID 9609Ethyl sulfideHCID 11181604methyl [(1S,4S,5S,7S,10S)-4-benzyl-1,10-di-tert-butyl-5-hydroxy-2,9,12-trioxo-7-(4-pyridin-2-ylbenzyl)-13-oxa-3,8,11-triazatetradec-1-yl]carbamate

Product 1

HCID 86726259methyl (1S)-1-({[(1S,2S,4S)-1-benzyl-2-[1-(ethylthio)ethoxy]-4-{[N-(methoxycarbonyl)-3-methyl-L-valyl]amino}-5-(4-pyridin-2-ylphenyl)pentyl]amino}carbonyl)-2,2-dimethylpropylcarbamateYield 104.5%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a slurry of the compound of Example 2D (2.00 g, 2.84 mmol) and ethyl sulfide (8.0 mL, 74.06 mmol) in acetonitrile (28.0 mL) at room temperature was added benzoyl peroxide (4.95 g, 20.45 mmol) in three portions over 2 hours. The reaction was diluted with ethyl acetate and washed with 10% Na2CO3 and brine. The organic was dried over MgSO4, filtered and evaporated. The residue was chromatographed on silica gel eluting with a gradient starting with dichloromethane and ending with ethyl acetate to give the title compound (2.35 g, 84% yield).

Workup

  1. washwashed with 10% Na2CO3 and brine
  2. dry with materialThe organic was dried over MgSO4
  3. filtrationfiltered
  4. customevaporated
  5. customThe residue was chromatographed on silica gel eluting with a gradient

Sources & evidence

ORD record
ord-a89593cfd5d946db93f0e886dab4a5d6
Source dataset
uspto-grants-2010_11
Patent number
US07834043B2

Reaction notes

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