You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance methane;1-methylazetidine;1-methylaziridine;2-methyl-1,2-oxazolidine;3-methyl-1,3-oxazolidine;1-methylpyrrolidine .
user
C56H133N13O2
assistant