Novel Pyridine and 1,4-dihydropyridine Alkaloids fromHouttuynia cordata

Abstract From Houttuynia cordata, a Chinese herbal medicine, pyridine derived alkaloids have been isolated and structurally elucidated as: 3-Decanoyl-6-nonyl-pyridine (1), 3,5-didecanoyl-pyridine (2), three novel 1,4-dihydropyridines: 3,5-didecanoyl-4-nonyl-1,4-dihydropyridine (3), 3-decanoyl-4-nonyl-5-dodecanoyl-1,4-dihydropyridine (4), 3,5-didodecanoyl-4-nonyl-1,4-dihydropyridine (5) and a novel triacylbenzene 1,3,5-tridecanoylbenzene (6).