How is (2S,5R,6R)-6-({(2R)-2-[({2-[(Carboxycarbonyl)(ethyl)amino]ethyl}carbamoyl)amino]-2-phenylacetyl}amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (CAS: 64844-70-8) typically synthesized?

The compound is often synthesized via multi-step reactions involving peptide coupling and amide formation. Commonly, a protected amino acid is coupled to a linker, followed by coupling with an activated carboxylic acid derivative. High-yield methods typically use standard protecting group chemistry and are catalyzed with moderate to strong bases under anhydrous conditions.