prov:value
| - naphthalene, pyridine etc.The most preferred compound of general formula (I) prepared by the method depicted in Scheme 1 in case that wherein A ring is cyclohexane; and R3, R4, R5, and R6 is a hydrogen atom, is one selected from the group consisting of:1,2-dibutoxycyclohexane, 1,2-diisobutoxycyclohexane, 1,2-bis-pentyloxy-cyclohexane, 1,2-bis-(3-methyl-butoxy)-cyclohexane, 1-[2-(2-oxo-butoxy)-cyc
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