You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[(5-amino-1,3-benzoxazol-2-yl)amino]-4-(2-chlorophenyl)-6-methyl-N-(5-pyridin-3-yl-1,3,4-thiadiazol-2-yl)-1,4-dihydropyrimidine-5-carboxamide into molecular formula.
user
C26H20ClN9O2S
assistant