11. Many natural products, especially alkaloids , contain the imidazole ring. 12. As an employee as Squibb, Ondetti focused on alkaloid chemistry. 13. Hexane-extraction techniques indicate presence of alkaloid toxins in Brachypylina. 14. Some 200 dimeric indole alkaloids are known with two indole groups. 15. Pirroloindole alkaloids are synthesized in living organisms in a similar way. 16. It is an alkaloid and can be extracted from scotch broom. 17. Almost all hallucinogens contain nitrogen and are therefore classified as alkaloids . 18. Peyote also contains an alkaloid which was given the name peyocactin. 19. The plant contains toxic alkaloids including lupinine and the teratogenic anagyrine. 20. This manner of alkaloid control has been met with variable success.
