{HEAD ~ Other methods} to activate the carboxylic acid include reacting {TAIL ~ said acid} with one or more molar equivalents dicyclohexylcarbodiimide with or without one or more molar equivalents of hydroxybenzotriazole in a suitable solvent such as dichloromethane or dimethylformamide at temperatures ranging from 0° C. to 60° C 
include reacting
{ HEAD ~ Other methods } to activate the carboxylic acid include reacting { TAIL ~ said acid } with one or more molar equivalents dicyclohexylcarbodiimide with or without one or more molar equivalents of hydroxybenzotriazole in a suitable solvent such as dichloromethane or dimethylformamide at temperatures ranging from 0 ° C. to 60 ° C
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