| http://www.w3.org/ns/prov#value | - an H or at least 1 nonbridging ring carbon atom is substituted with R6 ; R6 is independently H, C1 -C6 alkyl, C2 -C6 alkenyl, C2 -C6 alkynyl, NO2, N(R3)2, C.tbd.N or halo, or an R6 is taken together with an adjacent R6 to complete a ring containing 5 or 6 ring atoms; and R3 is a protecting group or H; and tautomers, solvates and salts thereof. 2.
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