heterocycle
A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different chemical element, elements as members of its ring(s). Heterocyclic chemistry is the branch of organic chemistry dealing with the synthesis ...
s of seven atoms, with a
nitrogen
Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at se ...
replacing a
carbon
Carbon () is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent
In chemistry, the valence (US spelling) or valency (British spelling) of an element is the measure of its combining capacity with o ...
at one position.
See also
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Azepane
Azepane is the organic compound with the formula (CH2)6NH. It is a colorless liquid. A cyclic secondary amine, it is a precursor to several drugs and pesticides. It is produced by partial hydrogenolysis of hexamethylene diamine.
Like many amine ...
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Benzazepines
Benzazepines are heterocyclic chemical compounds consisting of a benzene ring fused to an azepine ring. Examples include:
File:Benazepril structure.svg, Benazepril
File:Fenoldopam.svg, Fenoldopam
File:GSK-189,254.svg, GSK-189,254
File:Ivabradin ...
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Diazepine
Diazepine is a seven-membered heterocyclic compound with two nitrogen atoms (e.g., in ring positions 1 and 2).
Types include:
* 1,2-diazepine
* 1,3-diazepine
* 1,4-diazepine
** Benzodiazepines
Benzodiazepines (BZD, BDZ, BZs), sometimes cal ...
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Oxepin
Oxepin is an oxygen-containing heterocycle consisting of a seven-membered ring with three double bonds. The parent C6H6O exists as an equilibrium mixture with benzene oxide. The oxepin–benzene oxide equilibrium is affected by the ring substi ...
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Borepin
Borepins are a class of boron-containing heterocycles used in main group chemistry. They consist of a seven-membered unsaturated ring with a tricoordinate boron in it. Simple borepins are analogues of cycloheptatriene, which is a seven-membered ...