Saturated azacyclopropane compounds. They include compounds with substitutions on CARBON or NITROGEN atoms.

Acyclic branched or unbranched hydrocarbons having two carbon-carbon double bonds.

Unsaturated azacyclopropane compounds that are three-membered heterocycles of a nitrogen and two carbon atoms.

The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.

The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)