prov:value
| - or ???O-aralkyl radical; R6 is hydrogen, R7 is a hydrogen atom, a halogen atom, a group R18???O???, R19SO2???O??? or ???R22, a straight-chain or branched-chain, saturated or unsaturated, partially or completely halogenated alkyl group with up to 10 carbon atoms or an optionally substituted aryl, heteroaryl or aralkyl radical, R8 and R9 are hydrogen, R11 means a hydrogen atom, a halogen atom, a gro
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