prov:value
| - up, or an aryloxy group, the substituent for Q7 and Q8 may be bonded to form a condensed ring, r is an integer of 1 to 3, provided that the Q7s may differ when r is 2 or more, and a case in which r is 1, Q5, Q6, and R20 are methyl groups, and R26 is a hydrogen atom or a substituted boryl group, and a case in which r is 3 and Q7 is a methyl group are excluded.
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