Adamantane derivatives and process for producing the same

4-10. (canceled)

A process for producing an adamantane derivative represented by the general formula (I):

• where R represents a hydrogen atom, a methyl group, or a CF3 group, Ys each represent an alkyl group having 1 to 10 carbon atoms, a halogen atom, or a hydroxyl group, or two Ys are coupled to form ═O, and multiple Ys may be identical to or different from each other, R1 represents an alkyl group or a cycloalkyl group having 1 to 10 carbon atoms, and may contain a hetero atom and/or a nitrile group in part of its structure, k represents an integer of 0 to 14, and m and n each independently represent an integer of 0 to 4, the process being characterized by comprising reacting an adamantane derivative represented by the general formula (II):
• where R2 represents an alkyl group having 1 to 10 carbon atoms, a phenyl group, an alkylphenyl group, or a CF3 group, R, Ys, k, m, and n each have the same meaning as that described above, with an alcohol.