| http://www.w3.org/ns/prov#value | - Other suitable tertiary amines are alkyl pyridines, such as picolines, N,N-dimethylaniline, and quinolines. 1 It will be understood, of course, that pyridine, when used as a solvent, is a separate compound from the pyridine-sulfur trioxide complex utilized as a sulfating agent in a preferred embodiment of the inven
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