for the following products
(2S,5R)-5-Methyl-5-[(benzyloxy)amino]piperidine-2-carboxylate ethanedioate | (2S,5R)-5-[(Phenylmethoxy)amino]-2-piperidinecarboxylic acid ethyl ester ethanedioate | (2S,5R)-Ethyl 5-((benzyloxy)amino)piperidine-2-carboxylate oxalate and Avibactam int 1