You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S,10R,12R,13R,21E)-26-(9H-pyrido[3,4-b]indol-1-yl)-28-oxa-3,16-diazahexacyclo[11.11.2.11,10.112,16.02,12.03,10]octacosa-21,25-dien-7-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C36H42N4O2
assistant