Definition: Organic nitrogenous bases. Many alkaloids of medical importance occur in the animal and vegetable kingdoms, and some have been synthesized. (Grant & Hackh's Chemical Dictionary, 5th ed)
GEN or unspecified; prefer specific groups or specific alkaloid; alkaloids from specific plants go here (IM) + name of plant or PLANTS, MEDICINAL, etc.
kifunensine inhibitor of the glycoprotein processing mannosidase I; from actinomycete Kitasatosporia kifunense 9482; structure given in first source; RN given refers to (5R-(5alpha,6beta,7alpha,8alpha,8aalpha))-i