prov:value
| - tyl; aryl means phenyl or naphthyl; aryl-C1-4 alkyl means aralkyl having 1 to 4 carbon atoms in the alkyl moiety such as benzyl, 2-phenylethyl, 3-phenylpropyl, 4-phenylbutyl, naphthylmethyl, 2-naphthylethyl, 3-naphthylpropyl or 4-naphthylbutyl; heteroaryl means pyridyl, thienyl, furyl, pyrazolyl, imidazolyl, pyrimidinyl, pyridazinyl or benzimidazolyl; heteroaryl-C1-4 alkyl means, for example, 2-,
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