Indolizine is an heterocyclic compound with the formula C8H7N).

It is an uncommon isomer of indole with the nitrogen located at a ring fusion position.

The saturated analogs are indolizidine, which are found in a variety of alkaloids such as swainsonine.

[3] Examples of some simple substituted indolizines include 2ZEDMA, 1ZP2MA, and 1Z2MAP1O.

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