You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2S)-N-[2-[5-(3-chloro-4-methoxyphenyl)-3-pyridin-4-yl-1,2,4-triazol-1-yl]ethyl]-1-cyclopentyl-5-oxopyrrolidine-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C26H29ClN6O3
assistant