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 [4-[(2,4-diaminoquinazolin-5-yl)oxymethyl]piperidin-1-yl]-(5-methyl-1,2-oxazol-3-yl)methanone .
user
C19H22N6O3
assistant