How is Methyl O-methyl-N-{[(2-methyl-2-propanyl)oxy]carbonyl}-L-serinate (CAS: 134167-07-0) typically synthesized?

Methyl O-methyl-N-{[(2-methyl-2-propanyl)oxy]carbonyl}-L-serinate can be synthesized through a multi-step process involving esterification and amidation reactions. The synthesis typically uses L-serine as the starting material, followed by methylation and esterification steps. Commonly, a catalyst such as an acid (e.g., acetic acid) or base (e.g., sodium hydroxide) is used to enhance the reaction selectivity and yield, which can be up to 80% under optimized conditions.