Thiazepines
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Thiazepines are a substituted thiepins, with a nitrogen replacing a carbon in the seven-membered heterocyclic compound.
Benzothiapines (such as diltiazem) have a single benzene attached to the ring, while dibenzothiazepines have two.
- Diltiazem, a benzothiazepine, is intermediate in properties between verapamil and the dihydropyridines.
- Diltiazem is used to treat variant (Prinzmetal's) angina, either naturally occurring or drug-induced and stable angina.