having seven-membered rings, e.g. azelastine, pentylenetetrazole

Full Title

Medicinal preparations containing organic active ingredients > Heterocyclic compounds > having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins > having seven-membered rings, e.g. azelastine, pentylenetetrazole

Child Classifications

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• A61K 31/551 having two nitrogen atoms, e.g. dilazep
• A61K 31/553 having at least one nitrogen and one oxygen as ring hetero atoms, e.g. loxapine, staurosporine
• A61K 31/554 having at least one nitrogen and one sulfur as ring hetero atoms, e.g. clothiapine, diltiazem