prov:value
| - ey may be the same or different, l represents 0 or 1, provided that when X is a sulfur atom, l represents 1, and that when X is an iodine atom, 1 represents 0, m represents an integer of 0 to 10 and n represents an integer of 1 to 6, provided that when m is 0, n represents an integer of 2 or larger: wherein R1 to R37 each independently represents a hydrogen atom, an alkyl group, an alkoxy group, a
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