m-Chloroperbenzoic acid → (1-{2-[5-(7-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-5-oxo-5H-5lambda4-dibenzothiophen-3-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester

HRID 2039107Notes

Reaction equation

HRID 2039107 reaction equation
[CH3:1][O:2][C:3](=[O:55])[NH:4][CH:5]([C:9]([N:11]1[CH2:15][CH2:14][CH2:13][CH:12]1[C:16]1[NH:17][C:18]([C:21]2[CH:22]=[CH:23][C:24]3[C:28]4[CH:29]=[CH:30][C:31]([C:33]5[NH:34][C:35]([CH:38]6[CH2:42][CH2:41][CH2:40][N:39]6[C:43](=[O:53])[CH:44]([NH:48][C:49]([O:51][CH3:52])=[O:50])[CH:45]([CH3:47])[CH3:46])=[N:36][CH:37]=5)=[CH:32][C:27]=4[S:26][C:25]=3[CH:54]=2)=[CH:19][N:20]=1)=[O:10])[CH:6]([CH3:8])[CH3:7].C1C=C(Cl)C=C(C(OO)=[O:64])C=1>C(Cl)Cl.C(OCC)(=O)C>[CH3:1][O:2][C:3](=[O:55])[NH:4][CH:5]([C:9]([N:11]1[CH2:15][CH2:14][CH2:13][CH:12]1[C:16]1[NH:17][C:18]([C:21]2[CH:22]=[CH:23][C:24]3[C:28]4[CH:29]=[CH:30][C:31]([C:33]5[NH:34][C:35]([CH:38]6[CH2:42][CH2:41][CH2:40][N:39]6[C:43](=[O:53])[CH:44]([NH:48][C:49]([O:51][CH3:52])=[O:50])[CH:45]([CH3:47])[CH3:46])=[N:36][CH:37]=5)=[CH:32][C:27]=4[S:26](=[O:64])[C:25]=3[CH:54]=2)=[CH:19][N:20]=1)=[O:10])[CH:6]([CH3:7])[CH3:8]

Participants

5

Reactant 2

HCID 70297m-Chloroperbenzoic acidHCID 66621070(1-{2-[5-(7-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-dibenzothiophen-3-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester

Product 1

HCID 66620340(1-{2-[5-(7-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-5-oxo-5H-5lambda4-dibenzothiophen-3-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl esterYield 33%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
-40 °C

Procedure

(1-{2-[5-(7-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-dibenzothiophen-3-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester (0.0041 mmol., 4 mg) was dissolved in 1 mL DCM and cooled to −40° C. mCPBA (0.4 mg, 0.9 eq.) was added. The reaction mixture was stirred at −40° C. for 2 hours and warmed up to 0° C. over 2 hours, then warmed up to room temperature overnight. The reaction mixture was diluted with ethyl acetate and washed with saturated sodium bicarbonate solution. The organic layer was dried (MgSO4), concentrated and purified by preparative reverse phase HPLC (GEMINI, 5 to 100% ACN/H2O+0.1% TFA). Product was lyophilized to give a yellow powder (1-{2-[5-(7-{2-[1-(2-Methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-5-oxo-5H-5λ4-dibenzothiophen-3-yl)-1H-imidazol-2-yl]-pyrrolidine-1-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester (Example DD) (0.6 mg). 1H-NMR: 300 MHz, (CD3OD-d4) δ: 8.36 (m, 2H), 8.18-7.90 (m, 6H), 5.22 (m, 2H), 4.19 (m, 2H), 4.05 (m, 2H), 3.84 (m, 2H), 3.61 (d, 6H), 2.56-1.96 (m, 10H), 0.97-0.84 (m, 12H). LCMS-ESI+: calc'd for C40H48N8O6S: 768.92; Found: 769.3 (M+H+).

Workup

  1. additionwas added
  2. temperaturewarmed up to 0° C. over 2 hours
  3. temperaturewarmed up to room temperature overnight
  4. washwashed with saturated sodium bicarbonate solution
  5. dry with materialThe organic layer was dried (MgSO4)
  6. concentrationconcentrated
  7. custompurified by preparative reverse phase HPLC (GEMINI, 5 to 100% ACN/H2O+0.1% TFA)

Sources & evidence

ORD record
ord-de9c51f8d61b40738baaf5370f26d497
Source dataset
uspto-grants-2013_11
Patent number
US08575118B2

Reaction notes

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