Are there alternatives to N,N'-Dibenzyl-1,2-ethanediaminium bis{(2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate} (CAS: 1538-09-6) in synthesis?

In the synthesis of N,N'-Dibenzyl-1,2-ethanediaminium bis{(2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate} (CAS: 1538-09-6), alternative reagents may include simpler diamines or carboxylic acids. However, the choice of alternative reagents depends on the specific reaction conditions and desired product purity. Analogous compounds or isomers may also be considered based on the functional groups and reactivity.