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 ethyl 2-[(2S)-1-[3-(2-hydroxyphenyl)propanoyl]pyrrolidin-2-yl]-1,3-thiazole-4-carboxylate ?
user
C19H22N2O4S
assistant