prov:value
| - Particularly useful atoms or groups represented by R16 include fluorine, chlorine, bromine or iodine atoms, or C1-6 alkyl, e.g. methyl or ethyl, C1-6 alkylamino, e.g. methylamino or ethylamino, C1-6 hydroxyalkyl, e.g. hydroxymethyl or hydroxyethyl, C1-6 alkylthiol e.g. methylthiol or ethylthiol, C1-6 alkoxy, e.g. methoxy or ethoxy, C5-7 cycloalkoxy, e.g. cyclopentyloxy, haloC1-6 alkyl, e.g. triflu
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