Piperidine, 1-(2-chloroethyl)-, hydrochloride → 3-({7-Chloro-1-[2-(piperidin-1-yl)ethyl]-1,4-dihydroquinolin-4-ylidene}amino)-5-{[2-(piperidin-1-yl)ethyl]amino}benzonitrile

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Reaction Steps

3-amino-5-({7-chloro-1-[2-(piperidin-1-yl)ethyl]-1,4-dihydroquinolin-4-ylidene}amino)benzonitrile prepared from example 21 (132 mg, 0.32 mmol), 1-(2-chloroethyl)piperidine hydrochloride (182 mg, 3 eq) and DIEA (0.51 mL, 9.3 eq) were refluxed in 15 mL of 2-methylbutan-1-ol for 10 h. The reaction mixture was then evaporated and the residue and was purified by preparative thin-layer chromatography (DCM/MeOH/NH4OH//95/5/1) to yield expected compound as a yellow oil (28 mg, 17% yield). m/z (ESI) 517.5 [M+H]+.

Provenance & Evidence