Diazepine is a seven-membered heterocyclic compound with two nitrogen atoms (e.g., in ring positions 1 and 2).
Types include:
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1,2-Diazepine
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1,3-Diazepine
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1,4-Diazepine
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Benzodiazepines, a class of commonly used medications whose structure contains a 1,4-diazepine ring