| http://www.w3.org/ns/prov#value | - The productcan be isolated and purified by techniques well known in the art, such as quench of borane or aluminum complexes, extraction, evaporation, trituration, chromatography, and recrystallization.In Reaction Scheme I, optional step 2, an appropriate 3-aryl-3-(.omega.-THP-protected-hydroxyethyl)-pyrrolidine of formula 44 is alkylated with an appropriate alkyl halide, X--CH.sub.2 --(CH.sub.2).s
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