How is 2,2',2'',2'''-{(3-Oxo-1,3-dihydro-2-benzofuran-1,1-diyl)bis[(6-hydroxy-5-methyl-3,1-phenylene)methylenenitrilo]}tetraacetic acid (CAS: 2411-89-4) typically synthesized?

The synthesis of this compound usually involves multi-step reactions starting from the appropriate precursors. Common methods include condensation reactions and multi-component reactions. The synthesis often requires careful control of reaction conditions to ensure selectivity and yield. Suitable catalysts and reagents are used to facilitate the reaction and improve efficiency.