You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 2-[2-[(2R)-2-[(3-tert-butylphenoxy)methyl]-5-oxopyrrolidin-1-yl]ethylsulfanyl]-1,3-thiazole-4-carboxylic acid ?
user
C21H26N2O4S2
assistant