Methyl Isocyanate → (1-{1-[6-(3,4-Difluoro-phenoxy)-4-methylcarbamoyl-hexahydro-pyrrolo[3,2-b]pyrrole-1-carbonyl]-2,2-dimethyl-propylcarbamoyl}-ethyl)-methyl-carbamic acid benzyl ester

HRID 1965184Notes

Reaction equation

HRID 1965184 reaction equation
[CH2:1]([O:8][C:9](=[O:41])[N:10]([CH:12]([C:14](=[O:40])[NH:15][CH:16]([C:21]([N:23]1[CH2:27][CH2:26][CH:25]2[NH:28][CH2:29][CH:30]([O:31][C:32]3[CH:37]=[CH:36][C:35]([F:38])=[C:34]([F:39])[CH:33]=3)[CH:24]12)=[O:22])[C:17]([CH3:20])([CH3:19])[CH3:18])[CH3:13])[CH3:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CCN(C(C)C)C(C)C.[CH3:51][N:52]=[C:53]=[O:54]>C(Cl)Cl>[CH2:1]([O:8][C:9](=[O:41])[N:10]([CH:12]([C:14](=[O:40])[NH:15][CH:16]([C:21]([N:23]1[CH2:27][CH2:26][CH:25]2[N:28]([C:53](=[O:54])[NH:52][CH3:51])[CH2:29][CH:30]([O:31][C:32]3[CH:37]=[CH:36][C:35]([F:38])=[C:34]([F:39])[CH:33]=3)[CH:24]12)=[O:22])[C:17]([CH3:19])([CH3:18])[CH3:20])[CH3:13])[CH3:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 12228Methyl IsocyanateHCID 81531DiisopropylethylamineHCID 67606709(1-{1-[6-(3,4-Difluoro-phenoxy)-hexahydro-pyrrolo[3,2-b]pyrrole-1-carbonyl]-2,2-dimethyl-propylcarbamoyl}-ethyl)-methyl-carbamic acid benzyl ester

Product 1

HCID 67606741(1-{1-[6-(3,4-Difluoro-phenoxy)-4-methylcarbamoyl-hexahydro-pyrrolo[3,2-b]pyrrole-1-carbonyl]-2,2-dimethyl-propylcarbamoyl}-ethyl)-methyl-carbamic acid benzyl esterYield 91.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Conditions

Temperature
0 °C

Procedure

A solution containing 35 (228 mg, 0.4 mmol), DIPEA (104 mg, 0.8 mmol) in DCM (5 mL) was cooled to 0° C. Methyl isocyanate (35 mg, 0.6 mmol) was added. After 3 h, the reaction mixture was warmed to ambient temperature, diluted with DCM, washed successively with saturated aqueous NaHCO3, 1N HCl, and brine, dried over anhydrous Na2SO4, filtered, and concentrated to afford the crude 40 (230 mg) which was used without further purification. Mass spectrum, m/z [630.1] (M+H)+.

Workup

  1. temperaturethe reaction mixture was warmed to ambient temperature
  2. washwashed successively with saturated aqueous NaHCO3, 1N HCl, and brine
  3. dry with materialdried over anhydrous Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-5664a35799a94ba2919cd82fd5db0a2a
Source dataset
uspto-grants-2013_04
Patent number
US08415486B2

Reaction notes

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