How is 3-[2-(2-{[3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanoyl]amino}ethoxy)ethoxy]propanoic acid (CAS: 756525-98-1) typically synthesized?

This compound can be synthesized via a multi-step process involving the condensation of a pyrrole derivative with an amino acid, followed by derivatization with ethylene glycol and further acylation. Common synthetic methods include the use of coupling reagents like DCC and HOBt, with high yield and selectivity. The reaction conditions should be carefully controlled to avoid side reactions.