| http://www.w3.org/ns/prov#value | - The acid addition salts of the compounds of Formula A may be decomposed to the corresponding free bases by treating with an excess of a suitable base, such as ammonia or sodium bicarbonate, typically in the presence of aqueous solvent, and at a temperature of between 0??? and 50??? C. The free base form is isolated by conventional means, such as extraction with an organic solvent.
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