| prov:value
| - ??C(O)R11, ???C(O)OR11, ???OC(O)R11, ???NR11C(O)R12, ???C(O)NR11R12, ???NR11R12, hydroxy, C1???C6 alkyl, C2???C6 alkenyl, C2???C6 alkynyl, (C6???C10 aryl) C0???C6 alkyl, (4- to 10-membered heterocyclic) C0???C6 alkyl, C1???C6 alkoxy, C6???C10 aryloxy, ???S(O)l(C0???C6 alkyl), ???S(O)l(C2???C6 alkenyl) and ???SO2NR11R12 wherein each l is an integer from 0 to 2; R15 is selected from H, C1???C10 alky
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