Sodium Carbonate → 1-benzenesulfonyl-2-[2-cyclopentyl-1-(4-methanesulfonyl-phenyl)-vinyl]-5-(3-methoxy-prop-1-ynyl)-1H-pyrrolo[2,3-b]pyridine

HRID 1515693Notes

Reaction equation

HRID 1515693 reaction equation
[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([C:19]#[C:20][CH2:21][O:22][CH3:23])[CH:18]=[C:13]3[CH:12]=[C:11]2[C:24](OS(C2C=CC(C)=CC=2)(=O)=O)=[CH:25][CH:26]2[CH2:30][CH2:29][CH2:28][CH2:27]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH3:42][S:43]([C:46]1[CH:51]=[CH:50][C:49](B(O)O)=[CH:48][CH:47]=1)(=[O:45])=[O:44].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:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[C:17]([C:19]#[C:20][CH2:21][O:22][CH3:23])[CH:18]=[C:13]3[CH:12]=[C:11]2[C:24]([C:49]2[CH:50]=[CH:51][C:46]([S:43]([CH3:42])(=[O:45])=[O:44])=[CH:47][CH:48]=2)=[CH:25][CH:26]2[CH2:30][CH2:29][CH2:28][CH2:27]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 27343644-(Methanesulfonyl)phenylboronic acidHCID 86654506toluene-4-sulfonic acid 1-[1-benzenesulfonyl-5-(3-methoxy-prop-1-ynyl)-1H-pyrrolo[2,3-b]pyridin-2-yl]-2-cyclopentyl-vinyl ester

Product 1

HCID 672293591-benzenesulfonyl-2-[2-cyclopentyl-1-(4-methanesulfonyl-phenyl)-vinyl]-5-(3-methoxy-prop-1-ynyl)-1H-pyrrolo[2,3-b]pyridineYield 45.6%

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-(3-methoxy-prop-1-ynyl)-1H-pyrrolo[2,3-b]pyridin-2-yl]-2-cyclopentyl-vinyl ester (900 mg, 1.53 mmol), 4-(methanesulfonyl)phenylboronic acid (763 mg, 3.81 mmol) and dichlorobis(triphenylphosphine)palladium (II) (107 mg, 0.15 mmol) in dioxane (5 mL) was added an aqueous sodium carbonate solution (2 M, 1.9 mL). The mixture was subjected to microwave irradiation for 1 h at 100° C. The resulting mixture was diluted with ethyl acetate (150 mL), washed with a saturated aqueous sodium bicarbonate solution (2×50 mL), brine, dried over anhydrous sodium sulfate and then concentrated in vacuo. Purification by flash silica gel chromatography (silica gel from QingDao, 200-300 mesh, glass column from Shanghai SD company, 33% ethyl acetate/hexanes) afforded 1-benzenesulfonyl-2-[2-cyclopentyl-1-(4-methanesulfonyl-phenyl)-vinyl]-5-(3-methoxy-prop-1-ynyl)-1H-pyrrolo[2,3-b]pyridine (400 mg, 45.6%) as an orange oil: LC/MS m/e calcd for C31H30N2O5S2 [M+H]+ 575.72, observed 575.1.

Workup

  1. customirradiation for 1 h at 100° C
  2. washwashed with a saturated aqueous sodium bicarbonate solution (2×50 mL), brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customPurification by flash silica gel chromatography (silica gel from QingDao, 200-300 mesh, glass column from Shanghai SD company, 33% ethyl acetate/hexanes)

Sources & evidence

ORD record
ord-5a86f80b421240989f5b522f0634c6fc
Source dataset
uspto-grants-2012_07
Patent number
US08222416B2

Reaction notes

Loading…