User talk:60.227.134.145

Hello,

I reverted the changes you made to the piperine, chavicine, and piperlongumine pages because they were not constructive. There is no explicit requirement that a molecule must contain a basic nitrogen in order to be considered an alkaloid. If fact, all three of these compounds are frequently referred to as alkaloids in the literature. From the alkaloid wiki page:

"Compared with most other classes of natural compounds, alkaloids are characterized by a great structural diversity. There is no uniform classification.


 * 1) "True alkaloids" contain nitrogen in the heterocycle and originate from amino acids. Their characteristic examples are atropine, nicotine, and morphine.
 * 2) "Protoalkaloids", which contain nitrogen (but not the nitrogen heterocycle) and also originate from amino acids. Examples include mescaline, adrenaline and ephedrine.
 * 3) Polyamine alkaloids – derivatives of putrescine, spermidine, and spermine.
 * 4) Peptide and cyclopeptide alkaloids.
 * 5) Pseudoalkaloids – alkaloid-like compounds that do not originate from amino acids. This group includes terpene-like and steroid-like alkaloids, as well as purine-like alkaloids such as caffeine, theobromine, theacrine and theophylline."

Best regards, Davination (talk) 14:55, 22 August 2021 (UTC)