Sodium Carbonate → {1-benzenesulfonyl-2-[2-cyclopentyl-1-(4-methanesulfonyl-phenyl)-vinyl]-1H-pyrrolo[2,3-b]pyridin-5-yl}-carbamic acid tert-butyl ester

HRID 1515851Notes

Reaction equation

HRID 1515851 reaction equation
[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([NH:19][C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[CH:18]=[C:13]3[CH:12]=[C:11]2[C:27](OS(C2C=CC(C)=CC=2)(=O)=O)=[CH:28][CH:29]2[CH2:33][CH2:32][CH2:31][CH2:30]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH3:45][S:46]([C:49]1[CH:54]=[CH:53][C:52](B(O)O)=[CH:51][CH:50]=1)(=[O:48])=[O:47].C(=O)([O-])[O-].[Na+].[Na+]>O1CCOCC1.C(OCC)(=O)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:23]([O:22][C:20](=[O:21])[NH:19][C:17]1[CH:18]=[C:13]2[CH:12]=[C:11]([C:27]([C:52]3[CH:53]=[CH:54][C:49]([S:46]([CH3:45])(=[O:48])=[O:47])=[CH:50][CH:51]=3)=[CH:28][CH:29]3[CH2:33][CH2:32][CH2:31][CH2:30]3)[N:10]([S:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)(=[O:8])=[O:9])[C:14]2=[N:15][CH:16]=1)([CH3:26])([CH3:25])[CH3:24]

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 27343644-(Methanesulfonyl)phenylboronic acidHCID 86654515toluene-4-sulfonic acid 1-(1-benzenesulfonyl-5-tert-butoxycarbonylamino-1H-pyrrolo[2,3-b]pyridin-2-yl)-2-cyclopentyl-vinyl ester

Product 1

HCID 67228047{1-benzenesulfonyl-2-[2-cyclopentyl-1-(4-methanesulfonyl-phenyl)-vinyl]-1H-pyrrolo[2,3-b]pyridin-5-yl}-carbamic acid tert-butyl esterYield 67.2%

Reagents, catalysts & solvents 3

HCID 178418476HCID 178418476, compoundCatalystHCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Procedure

To a mixture of toluene-4-sulfonic acid 1-(1-benzenesulfonyl-5-tert-butoxycarbonylamino-1H-pyrrolo[2,3-b]pyridin-2-yl)-2-cyclopentyl-vinyl ester (0.5 g, 0.78 mmol), 4-methylsulfonyl phenylboronic acid (468 mg, 2.34 mmol), dichlorobis(triphenylphosphine)palladium (II) (55 mg, 0.08 mmol) in dioxane (5 mL) was added an aqueous sodium carbonate solution (2 M, 1.17 mL, 2.34 mmol). The resulting mixture was subjected to microwave irradiation for 3 h at 100° C. The mixture was diluted with ethyl acetate (80 mL), washed with a saturated aqueous sodium bicarbonate solution (2×20 mL), brine, dried over anhydrous sodium sulfate and then concentrated in vacuo. Purification by flash column chromatography (QingDao silica gel, 200-300 mesh, 33% ethyl acetate/hexanes) afforded {1-benzenesulfonyl-2-[2-cyclopentyl-1-(4-methanesulfonyl-phenyl)-vinyl]-1H-pyrrolo[2,3-b]pyridin-5-yl}-carbamic acid tert-butyl ester (326 mg, 67%) as a light yellow solid: LC/MS m/e calcd for C32H35N3O6S2 [M+H]+ 622.78, observed 622.1.

Workup

  1. customirradiation for 3 h at 100° C
  2. washwashed with a saturated aqueous sodium bicarbonate solution (2×20 mL), brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customPurification by flash column chromatography (QingDao silica gel, 200-300 mesh, 33% ethyl acetate/hexanes)

Sources & evidence

ORD record
ord-a26a7d7d714c4db0af4f4d2c546e885e
Source dataset
uspto-grants-2012_07
Patent number
US08222416B2

Reaction notes

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