prov:value
| - times with a (C1 -C4)alkyl; R9 is hydrogen, a (C1 -C4)alkyl or a phenyl(C1 -C4)alkyl which is unsubstituted or substituted on the phenyl one or more times with R11 ; R10 is a halogen, a (C1 -C4)alkyl, a (C1 -C4)alkoxy, a hydroxyl, an amino, a (C1 -C4)alkylamino or a di(C1 -C4)alkylamino; R11 is a halogen, a (C1 -C4)alkyl, a trifluoromethyl, a phenyl, a hydroxyl, a (C1 -C4)alkoxy or a benzyloxy; or
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