Sodium Carbonate → 1-benzenesulfonyl-2-{2-cyclopentyl-1-[4-(2-methoxy-ethanesulfonyl)-phenyl]-vinyl}-1H-pyrrolo[2,3-b]pyridine

HRID 1515814Notes

Reaction equation

HRID 1515814 reaction equation
[C:1]1([S:7]([N:10]2[C:14]3=[N:15][CH:16]=[CH:17][CH:18]=[C:13]3[CH:12]=[C:11]2[C:19](OS(C2C=CC(C)=CC=2)(=O)=O)=[CH:20][CH:21]2[CH2:25][CH2:24][CH2:23][CH2:22]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH3:37][O:38][CH2:39][CH2:40][S:41]([C:44]1[CH:49]=[CH:48][C:47](B(O)O)=[CH:46][CH:45]=1)(=[O:43])=[O:42].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]=[CH:17][CH:18]=[C:13]3[CH:12]=[C:11]2[C:19]([C:47]2[CH:48]=[CH:49][C:44]([S:41]([CH2:40][CH2:39][O:38][CH3:37])(=[O:42])=[O:43])=[CH:45][CH:46]=2)=[CH:20][CH:21]2[CH2:25][CH2:24][CH2:23][CH2:22]2)(=[O:8])=[O:9])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 672291694-(2-Methoxy-ethanesulfonyl)-phenylboronic acidHCID 86654505toluene-4-sulfonic acid 1-(1-benzenesulfonyl-1H-pyrrolo[2,3-b]pyridin-2-yl)-2-cyclopentyl-vinyl ester

Product 1

HCID 672295911-benzenesulfonyl-2-{2-cyclopentyl-1-[4-(2-methoxy-ethanesulfonyl)-phenyl]-vinyl}-1H-pyrrolo[2,3-b]pyridineYield 59%

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-1H-pyrrolo[2,3-b]pyridin-2-yl)-2-cyclopentyl-vinyl ester (prepared as in Example 43, 2.14 g, 4 mmol), 4-(2-methoxy-ethanesulfonyl)-phenylboronic acid (prepared as in Example 88, 2.5 g, 10 mmol) and dichlorobis(triphenylphosphine)palladium (II) (280 mg, 0.4 mmol) in dioxane (20 mL) was added an aqueous sodium carbonate solution (2 M, 10 mL). The resulting mixture was subjected to microwave irradiation for 2 h at 100° C. The mixture was diluted with ethyl acetate (100 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, 25% ethyl acetate/hexanes) afforded 1-benzenesulfonyl-2-{2-cyclopentyl-1-[4-(2-methoxy-ethanesulfonyl)-phenyl]-vinyl}-1H-pyrrolo[2,3-b]pyridine (1.3 g, 57%) as a white solid: LC/MS m/e calcd for C29H30N2O5S2 [M+H]+ 551.70, observed 551.4.

Workup

  1. customirradiation for 2 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, 25% ethyl acetate/hexanes)

Sources & evidence

ORD record
ord-8eaaba724833485c99093133d56d2587
Source dataset
uspto-grants-2012_07
Patent number
US08222416B2

Reaction notes

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