prov:value
| - -methylamino, N-cyclopentyl-N-ethylamino, N-cyclohexyl-N-ethylamino and the like), formyl, carboxy, carboxy-C2-6-alkenyl, carboxy-C1-6 alkyl, C1-6 alkyl-carbonyl which may be halogenated (e.g., acetyl, propionyl, pivaloyl and the like), C3-8 cycloalkyl-carbonyl optionally substituted by C1-6 alkyl such as methyl, ethyl, etc. (e.g., cyclopropylcarbonyl, cyclopentylcarbonyl, cyclohexylcarbonyl, 1-me
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