(4-Chlorophenyl)methanesulfonyl chloride → 1-(4-Chlorophenyl)-N-{2,6-dimethyl-3-[3-(methyloxy)phenyl]thieno[2,3-b]pyridin-4-yl}methane sulfonamide

To a stirred solution of 2,6-dimethyl-3-[3-(methyloxy)phenyl]thieno[2,3-b]pyridin-4-amine (100 mg, 0.352 mmol) (Description 4) in THF (2 mL) cooled in an ice bath was added LiHMDS (1M solution in THF) (0.774 mL, 0.774 mmol). The reaction mixture was stirred at RT for 45 min before the addition of 4-chlorobenzylsulfonyl chloride (198 mg, 0.879 mmol). The reaction mixture was then stirred at RT for a further 16 h and was then cooled in an ice bath before the addition of LiHMDS (1M solution in THF) (0.352 mL, 0.352 mmol). The reaction mixture was stirred at RT for 1 h before the addition of 4-chlorobenzylsulfonyl chloride (79.2 mg, 0.352 mmol). The reaction mixture was stirred at RT for a further 16 h and then diluted with water (10 mL) and the aqueous layer extracted with DCM (3×20 mL). The combined organic extracts were dried over a phase separating column and concentrated. The residue was purified by MDAP (basic conditions), to afford the title compound (22 mg). LCMS (A) m/z: 473 [M+1]+, Rt 1.42 min (basic).

1. stirringThe reaction mixture was stirred at RT for a further 16 h
2. extractionthe aqueous layer extracted with DCM (3×20 mL)
3. customThe combined organic extracts were dried over a phase
4. customseparating column
5. concentrationconcentrated
6. customThe residue was purified by MDAP (basic conditions)

ORD-Eintrag

ord-55a5462831054be58e18d367d90ded9c

Quelldatensatz

uspto-grants-2015_05

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09029545B2