| http://www.w3.org/ns/prov#value | - Furthermore, the R4 group may have a substituent, such as a phenyl group, a biphenyl group, a naphthyl group, an anthryl group, a phenanthrenyl group, a pyrenyl group, a pyridyl group, a pyrazolyl group, a quinolyl group, a thiazolyl group, a benzothiazolyl group, an oxathiazolyl goup, an oxazolyl group or a benzoxazolyl group.
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