Benzoyl Peroxide → HCID 42637792, compound

HRID 1968918Notes

Reaction equation

HRID 1968918 reaction equation
[CH2:1]([C@H:8]([NH:30][C:31](=[O:50])[C@H:32]([CH:47]([CH3:49])[CH3:48])[NH:33][C:34]([N:36]([CH2:38][C:39]1[N:40]=[C:41]([CH:44]([CH3:46])[CH3:45])[S:42][CH:43]=1)[CH3:37])=[O:35])[CH2:9][C@H:10]([OH:29])[C@@H:11]([NH:19][C:20]([O:22][CH2:23][C:24]1[S:28][CH:27]=[N:26][CH:25]=1)=[O:21])[CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:51]([S:55][CH2:56][CH2:57][CH2:58][CH3:59])[CH2:52][CH2:53][CH3:54].C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>C(#N)C.C(OCC)(=O)C>[CH2:1]([C@H:8]([NH:30][C:31](=[O:50])[C@H:32]([CH:47]([CH3:49])[CH3:48])[NH:33][C:34]([N:36]([CH2:38][C:39]1[N:40]=[C:41]([CH:44]([CH3:45])[CH3:46])[S:42][CH:43]=1)[CH3:37])=[O:35])[CH2:9][C@H:10]([O:29][CH:51]([S:55][CH2:56][CH2:57][CH2:58][CH3:59])[CH2:52][CH2:53][CH3:54])[C@@H:11]([NH:19][C:20]([O:22][CH2:23][C:24]1[S:28][CH:27]=[N:26][CH:25]=1)=[O:21])[CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 3

HCID 7187Benzoyl Peroxide2×HCID 11002Dibutyl sulfideHCID 392622Ritonavir

Product 1

HCID 42637792HCID 42637792, compoundYield 68%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
0 °C

Procedure

To a solution of the compound of Example 1 (3.0 g, 4.2 mmol) and butyl sulfide (18 mL) in acetonitrile (24 mL) at 0° C. was added benzoyl peroxide (2.0 g) in three portions over 3 hours, and the reaction was stirred at 0° C. for 1 hour and then at room temperature for 1 hour. Additional benzoyl peroxide (4.0 g) was added in two portions over 2 hours at room temperature. The reaction was diluted with ethyl acetate and washed with 10% Na2CO3 and brine. The organic phase was dried over MgSO4, filtered and evaporated. The concentrate was chromatographed on silica gel eluting with a gradient starting with 50% ethyl acetate in chloroform and ending with ethyl acetate to give the title compound (2.43 g, 68% yield).

Workup

  1. waitat room temperature for 1 hour
  2. washwashed with 10% Na2CO3 and brine
  3. dry with materialThe organic phase was dried over MgSO4
  4. filtrationfiltered
  5. customevaporated
  6. customThe concentrate was chromatographed on silica gel eluting with a gradient

Sources & evidence

ORD record
ord-10c87f7acb8640a1a6ed7e0a872043a4
Source dataset
uspto-grants-2013_04
Patent number
US08426388B2

Reaction notes

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