  The work is a study of the geometry of the molecules via molecular mechanics
of the main alkaloids found in the seeds of Argemone Mexicana Linn, a prickly
poppy, which is considered one of the most important species of plants in
traditional Mexican and Indian medicine system. The seeds have toxic properties
as well as bactericide, hallucinogenic, fungicide, insecticide, in
isoquinolines and sanguinarine alkaloids such as berberine. A computational
study of the molecular geometry of the molecules through molecular mechanics of
the main alkaloids compounds present in plant seeds is described in a computer
simulation. The plant has active ingredients compounds: allocryptopine,
berberine, chelerythrine, copsitine, dihydrosanguinarine, protopine and
sanguinarine. The studied alkaloids form two groups having similar charge
distribution among themselves, which have dipole moments of these two times
higher than in the other group.
