| http://www.w3.org/ns/prov#value | - Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.BEST AND VARIOUS MODES FOR CARRYING OUT INVENTIONThe present invention is concerned with pyridine compounds represented by the following formulae: ##STR7##wherein each R.sub.1 is independently an alkyl group provided that at least one R.sub.1 is an alkyl group containing at least two carbon atoms; and e
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