prov:value
| - The term ???substituted??? refers to a substituent other than H, for example halogen, alkyl, aryl, heteroaryl, cycloalkyl, heterocyclyl, alkylene [sic], alkynyl, OH, O-alkyl, O-alkylene [sic], O-aryl, O-heteroaryl, NH2, NH-alkyl, NH-aryl, NH-heteroaryl, SH, S-alkyl, S-aryl, S(O2)H, S(O2)-alkyl, S(O2)-aryl, SO3H, SO3-alkyl, SO3-aryl, CHO, C(O)-alkyl, C(O)-aryl, C(O)OH, C(O)O-alkyl, C(O)O-aryl; OC(O
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