Diazepine

Diazepines are a type of organic compound. They are molecules with a ring of seven atoms, five carbon and two nitrogen, containing three double bonds. The simple diazepines have the chemical formula .

Diazepines are named based on how close the nitrogen atoms are (using the shorter trip around the cycle).
 If the nitrogen atoms are next to each other, it is a 1,2-diazepine.
 If one carbon atom is between the nitrogen atoms, it is a 1,3-diazepine. The cancer drug pentostatin has a 1,3-diazepine.
 If two carbon atoms are between then nitrogen atoms, it is a 1,4-diazepine. Benzodiazepine drugs are usually 1,4-diazepines.

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