Binap, (A+-)- → 4-[4-(4-trifluoromethyl-phenyl)-piperazin-1-yl]-N-[1-(4-trifluoromethylsulfanyl-phenyl)-piperidin-4-yl]-butyramide

Tris(dibenzylideneacetone)dipalladium (13 mg; 0.01 mmol), 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (26 mg; 0.04 mmol), sodium tert-butoxide (120 mg; 1.20 mmol), 1-bromo-4-trifluoromethylsulfanyl-benzene (160 mg; 0.62 mmol) and N-piperidin-4-yl-4-[4-(4-trifluoromethyl-phenyl)-piperazin-1-yl]-butyramide (300 mg; 0.75 mmol, prepared in accordance with Example 75) are suspended in dry toluene (10 mL) and the mixture is irradiated in a mono-mode microwave oven for 90 minutes at 120° C. The mixture is then cooled down to room temperature, is diluted with ethyl acetate (50 mL), is filtered and the filtrate is concentrated under reduced pressure. The crude residue is then purified by column chromatography on silica gel (dichloromethane:isopropyl alcohol 9:1) to afford the desired product (155 mg; 0.27 mmol). The structure was confirmed using Protocol I-B. Calculated mass=575; observed mass=575; HPLC retention time=5.26 min.

1. customthe mixture is irradiated in a mono-mode microwave oven for 90 minutes at 120° C
2. filtrationis filtered
3. concentrationthe filtrate is concentrated under reduced pressure
4. customThe crude residue is then purified by column chromatography on silica gel (dichloromethane:isopropyl alcohol 9:1)

ORD-Eintrag

ord-40924c15a021492fa87162495de762d6

Quelldatensatz

uspto-grants-2015_08

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09096524B2