| http://www.w3.org/ns/prov#value | - out by adding the his amine, hydroxybenzotriazole (HOBT) and dimethylaminopropyl ethyl carbodiimide hydrochloride or other suitable dehydrating reagent to a solution (in some cases, suspension) of the acid in an aprotic solvent, generally in an atmosphere of nitrogen for from about one to thirty hours.
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