having no double bonds between ring members or between ring members and non-ring members

Full Title

Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom > not condensed with other rings > having no double bonds between ring members or between ring members and non-ring members

Child Classifications

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• C07D 307/06 with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
• C07D 307/10 with substituted hydrocarbon radicals attached to ring carbon atoms
• C07D 307/18 with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms