| 摘要 |
A compound represented by the formula A<SUP>F</SUP>(-COF)<SUB>n</SUB>, provided that A<SUP>F </SUP>and n have the following meanings. A<SUP>F</SUP>: a fluorinated adamantane residue which is an n-valent group having an n number of hydrogen atoms removed from adamantane (provided that when n is at least 2, the removed hydrogen atoms are hydrogen atoms bonded to different carbon atoms), wherein at least one of the remaining hydrogen atoms is substituted by a fluorine atom, and the remaining hydrogen atoms may be substituted by a C<SUB>1-6 </SUB>alkyl group or fluoroalkyl group, and n: an integer of from 1 to 4, provided the when n is 1, A<SUP>F </SUP>has at least one hydrogen atom.
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