How is 3-[2-(2-Hydroxyethoxy)ethoxy]propanoic acid (CAS: 1334286-77-9) typically synthesized?

3-[2-(2-Hydroxyethoxy)ethoxy]propanoic acid is typically synthesized through a multi-step process involving acetylation, alkylation, and hydrolysis. The key steps involve the protection of the carboxylic acid functional group, followed by selective alkylation reactions to introduce the desired substituents. This synthesis route ensures high yield and good selectivity, with the use of standard organic solvents and mild conditions.