You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule benzyl (2S,3R)-3-[(2-amino-1,3-thiazol-5-yl)methyl]-1-[tert-butyl(dimethyl)silyl]-4-oxoazetidine-2-carboxylate .
user
C21H29N3O3SSi
assistant