How is 4-Ethyl 2-(2-methyl-2-propanyl) 3,5-dimethyl-1H-pyrrole-2,4-dicarboxylate (CAS: 86770-31-2) typically synthesized?

This compound is typically synthesized through a multistep process involving the condensation of dimethyl pyrrole-2,4-dicarboxylate with (E)-2-(2-methyl-2-propanyl)-4-ethenylbenzaldehyde. The synthesis involves the use of a catalyst and requires precise control of temperature and reaction time to achieve high yield and selectivity. The reaction mixture is then purified by recrystallization or column chromatography.