1-Tert-butyl-4-(trimethylstannyl)-1,2,3,6-tetrahydropyridine → 8-(1-tert-butyl-1,2,3,6-tetrahydropyridin-4-yl)-6-chloro-1-(2,6-dichlorophenyl)-2H-quinolizin-2-one

Participants

Reaction Steps

To a solution of 8-bromo-6-chloro-1-(2,6-dichlorophenyl)-2H-quinolizin-2-one (Example 17, 132 mg) in THF was added 1-t-butyl-4-(trimethylstannyl)-1,2,3,6-tetrahydropyridine (process route disclosed in U.S. Pat. No. 6,809,199, 90 mg.), dichlorobis(triphenylphosphine) palladium (21 mg) and heated to reflux for 12 h. The mixture was concentrated and purified by silica gel (methylene chloride/acetone=1/2) to give title compound (57 mg).

Provenance & Evidence