Quinoline alkaloids. Part 24. Dimerization of N-methylflindersine
Abstract
Reaction of 2,6-dihydro-2,2,6-trimethyl-5H-pyrano[3,2-c]quinolin-5-one (N-methylflindersine) with acid gave the dimer (5) which was converted into its dehydro derivative (4). The biogenesis of the dimeric quinolinone alkaloid, pteledimerine (3) is discussed