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 1-[2,5-dimethyl-1-(5-methyl-1,2-oxazol-3-yl)pyrrol-3-yl]-2-(5-phenyltetrazol-2-yl)ethanone .
user
C19H18N6O2
assistant