prov:value
| - The pharmaceutically-acceptable salts of the acids of formula (I) are also readily prepared by conventional procedures such as treating an acid of formula (I) with an appropriate amount of a base, such as an alkali or alkaline earth metal hydroxide e.g. sodium, potassium, lithium, calcium, or magnesium, or an organic base such as an amine, e.g., dibenzylethylenediamine, cyclohexylamine, dicyclohex
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