Triacetoxyperiodinane → 1-(1-benzenesulfonyl-5-methoxymethyl-1H-pyrrolo[2,3-b]pyridin-2-yl]-2-cyclopentyl-ethanone

To a solution of 1-(1-benzenesulfonyl-5-methoxymethyl-1H-pyrrolo[2,3-b]pyridin-2-yl]-2-cyclopentyl-ethanol (710 mg, 1.71 mmol) in dichloromethane (50 mL) was added Dess-Martin periodinane (1.8 g, 4.2 mmol) at 25° C. The reaction mixture was stirred at 25° C. for 1 h and then quenched with a saturated aqueous sodium bicarbonate solution (60 mL). The mixture was extracted with ethyl acetate (250 mL), washed with a saturated aqueous sodium bicarbonate solution (3×50 mL), brine, dried over anhydrous sodium sulfate and then concentrated in vacuo to give 1-(1-benzenesulfonyl-5-methoxymethyl-1H-pyrrolo[2,3-b]pyridin-2-yl]-2-cyclopentyl-ethanone (704 mg, quant.) as a light yellow solid which was used in the next step without further purification: LC/MS m/e calcd for C22H24N2O4S [M+H]+ 413.51, observed 413.2.

1. customquenched with a saturated aqueous sodium bicarbonate solution (60 mL)
2. extractionThe mixture was extracted with ethyl acetate (250 mL)
3. washwashed with a saturated aqueous sodium bicarbonate solution (3×50 mL), brine
4. dry with materialdried over anhydrous sodium sulfate
5. concentrationconcentrated in vacuo

ORDレコード

ord-183dfb88e6fc4eb795ca8ff2216ec286

出典データセット

uspto-grants-2012_07

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US08222416B2