4-[2-(N-BOC-N-Methyl)aminoethyl]phenylboronic acid acts as a reagent in the preparation of 6,11-dihydro-5H-benzo[d]imidazo[1,2-a]azepines derivatives as histamine H4 receptor ligands for therapy, preparation of oxadiazolylphenylboronic acid derivatives and analogs for use as fatty acid amide hydrolase inhibitors.