| http://www.w3.org/ns/prov#value | - The process comprises reacting N-methyl-2-pyrrolidone with a hydroxide of an alkali metal other than lithium in an aprotic organic solvent, reacting the...http://www.google.com.au/patents/US5344973?utm_source=gb-gplus-sharePatent US5344973 - Reaction of N-methyl-2-pyrrolidone with hydroxide of alkali metalAdvanced Patent SearchPublication numberUS5344973 APublication typeGrantApplication numberUS
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