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. 2021 Dec 16;12:719694. doi: 10.3389/fphar.2021.719694

TABLE 1.

Functional groups of plant-based alkaloids.

Alkaloid Structure Functional group
Nitidine chloride graphic file with name fphar-12-719694-fx1.jpg Arene
Benzene ring
Acetal
Ether
Sophoridine graphic file with name fphar-12-719694-fx2.jpg Amine, tertiary
Carboxamide
Carboxamide, tertiary
Lactam
Carbonyl
Palmatine graphic file with name fphar-12-719694-fx3.jpg Arene
Benzene ring
Ether
Aleutianamine graphic file with name fphar-12-719694-fx4.jpg Arene
Azaarene
Heteroarene
Alkene
Amine
Amine, secondary
Enamine
Α,β-unsaturated carbonyl
Carbonyl
Ketone
Aldehyde
Alkenyl bromide
Alkenyl halide
Leaving group
Sulfide
Nuciferine graphic file with name fphar-12-719694-fx5.jpg Arene
Benzene ring
Amine
Amine, tertiary
Ether
Theobromine graphic file with name fphar-12-719694-fx6.jpg Arene
Azaarene
Heteroarene
Amine
Amine, secondary
Amine, tertiary
Berberine graphic file with name fphar-12-719694-fx7.jpg Arene
Benzene ring
Acetal
Ether
Homoharringtonine graphic file with name fphar-12-719694-fx8.jpg Arene
Benzene ring
Alkene
Amine
Amine, tertiary
Acetal
Alkanol
Carbonyl
Enol ether
Ester (carboxylate ester)
Ether