prov:value
| - The substituent R10 may be selected from an atom or group R11 or -Alk1 (R11)m wherein R11 is a halogen atom, or an amino (--NH2), substituted amino, nitro, cyano, hydroxyl (--OH), substituted hydroxyl, cycloalkoxy, formyl HC(O)--!, carboxyl (--CO2 H), esterified carboxyl, thiol (--SH), substituted thiol, --C(O)R7a where R7a is as defined above for R7 !, --SO3 H, --SO2 R7a, --SO2 N R7a R8a !, (wher
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