You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S)-N-[(2R)-1-[[(2S)-1-[[(2S)-3-cyclopentyl-1-[(2S)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]amino]-3-(4-methoxyphenyl)-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]oxane-3-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H43N3O7
assistant