Tazettine is a widely reported alkaloid in the Amaryllidaceae family, particularly in Narcissus, although it is known to be an extraction artifact of pretazettine. All the alkaloids of the tazettine type that are isolated from Narcissus species show the typical methylenedioxy group between the C-8 and C-9 positions. Obesine is an exceptional tazettine-type alkaloid with a seven-membered ring.
