| http://www.w3.org/ns/prov#value | - Such isomers can be separated from their mixtures, by the application or adaptation of known methods, for example chromatographic techniques such as chiral chromatography and resolution via chiral amine salts (e.g. a-methylbenzylamine or ephedrine salts), or they are separately prepared from the appropriate isomers of their intermediates, for example by the application or adaptation of methods des
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