Are there alternatives to Sodium 4-hydroxybutanoate (CAS: 502-85-2) in synthesis?

There are several alternatives to Sodium 4-hydroxybutanoate (CAS: 502-85-2) in synthetic processes. For example, sodium 3-hydroxybutanoate and sodium 5-hydroxybutanoate are common analogs. Additionally, other reagents such as sodium 2-hydroxybutanoate and sodium 6-hydroxybutanoate can be used as substitutes based on the specific requirements of the synthesis. The choice of alternative reagents depends on the desired product and the reaction conditions.