| http://www.w3.org/ns/prov#value | - It is possible that the carboxylic acid II be converted to an acid halide with, for example, a halogenating agent such as phosphorus pentachloride, thionyl chloride, thionyl bromide or the like and the halide be reacted with the dichiral alcohol III in the above mentioned organic solvent in the presence of, for example, a tertiary amine such as pyridine, triethylamine or the like.
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