You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R,4R)-4-hydroxy-1-[3-[(2S,4S)-4-hydroxy-1-(2-methylpropanoyl)pyrrolidine-2-carbonyl]oxy-2,2-dimethylpropanoyl]pyrrolidine-2-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H30N2O8
assistant