prov:value
| - and branched chain C alkyl, especially lower alkyl, such as methyl, ethyl, nand isopropyl, n-, iso-, sec.- and tert.- butyl, amyl, isoamyl, hexyl, isohexyl, and the like, and particularly C or C alkyl; Cycloalkyl having 5-8 carbon atoms, such as cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, and the like, especially C cycloalkyl, and particularly cyclohexyl; Phenyl lower alkyl such as phenylmet
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