Imidazoline

Imidazoline is a class of heterocycles formally derived from imidazoles by the reduction of one of the two double bonds.

The 2- and 3-imidazolines contain an imine center, whereas the 4-imidazolines contain an alkene group.

The 2-Imidazoline group occurs in several drugs.

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Structures of 2-, 3-, and 4-imidazolines.
Chemical relationship of imidazole to its reduced derivatives.