You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the SMILES notation of the molecule 3-[[2-[ethylsulfonyl(methyl)amino]acetyl]-methylamino]-2-methylpropanoic acid ?
user
CCS(=O)(=O)N(C)CC(=O)N(C)CC(C)C(=O)O
assistant