You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 4-chloro-22-hydroxy-11,21,23-trimethyl-24-oxa-20-azahexacyclo[19.3.1.02,19.05,18.07,16.08,13]pentacosa-2,4,7(16),8(13),9,11,14,18-octaene-6,17-dione is given. What is its corresponding molecular formula?
user
C26H22ClNO4
assistant