prov:value
| - R is a group of Formula A, B, C, D, E, Fa, Fb, Fc, G or H, i.e., ##STR14## wherein each of R1 a, R2 a and R3 a is independently hydrogen; halo; C1-4 alkyl; C1-4 haloalkyl; phenyl; phenyl substituted by halo, C1-4 alkoxy, C2-8 alkanoyloxy, C1-4 alkyl or C1-4 haloalkyl; or --OR3 in which Rd is hydrogen, C2-8 alkanoyl, benzoyl, phenyl, halophenyl, phenyl(C1-3 alkyl), C1-9 alkyl, cinnamyl, C1-4 haloal
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