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-[4-[(1S,3S)-3-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-1-yl]phenyl]morpholine .
user
C22H25N3O
assistant