prov:value
| - nd R6 are not hydrogen, ##STR11## ???Br11, ???AlR11, --Ge--, --Sn--, --O--, --S--, ???SO, ???SO2, ???NR11, ???CO, ???PR11 or ???P(O)R11, where R11, R12 and R13 are identical or different and are a hydrogen atom, a halogen atom, a C1 -C10 -alkyl group, a C1 -C10 -fluoroalkyl group, a C6 -C10 -aryl group, a C6 -C10 -fluoroaryl group, a C1 -C10 -alkoxy group, a C2 -C10 -alkenyl group, a C7 -C40 -aryl
|