prov:value
| - Suitable substituents which may be present include aryl groups, halogenated aryl groups, alkyl groups, halogenated alkyl (e.g. trifluoromethyl and trichloromethyl), aliphatic ethers, aromatic ethers, benzyl, substituted benzyl, halogens, particularly chloro and fluoro groups, cyano, nitro, ???S-(aliphatic or substituted aliphatic group), and ???S-(aromatic or substituted aromatic) groups.
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