prov:value
| - Illustrative examples of alicyclic alkyl group are cyclopentyl, cyclohexyl, 4-tert-butylcyclohexyl, and the like; examples of aryl for R1 and R2 include a phenyl, a tolyl, 4-tert-butylphenyl, and the like; typical examples of alkoxy group include methoxy, ethoxy, isopropoxy, tert-butoxy, and the like.
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