| http://www.w3.org/ns/prov#value | - They are generally mono- or bi-cyclical and comprise advantageously from 6 to 14 carbon atoms, such as phenyl, ??-naphtyl, ??-naphtyl, anthracenyl or fluorenyl.The term ???oxygenated or sulfured heterocycle??? designates a cycloalkyl group as defined above interrupted by one or several heteroatoms chosen among O and S. Thiopyrane or pyrane can be cited as examples.By halogen atom, an atom of bromi
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