You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
15-(cyclopropylmethyl)-20-methoxy-4,12-dioxo-N-(1-pyrazin-2-ylpiperidin-4-yl)-2-oxa-5,8,13-triazabicyclo[15.3.1]henicosa-1(20),17(21),18-triene-15-carboxamide;dihydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C32H47Cl2N7O5
assistant