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 prop-2-enyl (2Z,5R)-2-(1-ethyl-2-oxoindol-3-ylidene)-7-methyl-3-oxo-5-thiophen-2-yl-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate .
user
C25H21N3O4S2
assistant