Canadian Medical Guide > Chemicals and Drugs > Heterocyclic Compounds Terms and Definitions

Heterocyclic Compounds

	Acids, Heterocyclic - A class of acids containing a ring structure in which atleast one atom other than CARBON is incorporated.
	Alkaloids - 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)
	Heterocyclic Compounds with 4 or More Rings - A class of organic compounds containing four or more ring structures, one of which is made up of more than one kind of atom, usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic.
	Heterocyclic Compounds, 1-Ring - A class of organic compounds containing a ring structure made up of more than one kind of atom, usually carbon plus another atom. The ring structure can be aromatic or nonaromatic.
	Heterocyclic Compounds, 2-Ring - A class of organic compounds containing two ring structures, one of which is made up of more than one kind of atom, usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic.
	Heterocyclic Compounds, 3-Ring - A class of organic compounds containing three ring structures, one of which is made up of more than one kind of atom, usually carbon plus another atom. The heterocycle may be either aromatic or nonaromatic
	Heterocyclic Compounds, Bridged-Ring - A class of organic compounds which contain two rings that share a pair of bridgehead carbon atoms.
	Heterocyclic Oxides - Oxides of a ring compound having atoms other than carbon in its ring.

Heterocyclic Compounds Medical Definitions and Terms