You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-[(2-amino-1,3-thiazol-4-yl)methyl]-N-[(2S,3R,4S)-1-cyclohexyl-3,4-dihydroxy-6-methylheptan-2-yl]-N'-[2-[methyl-[2-(4-methylpiperazin-1-yl)ethyl]amino]-2-oxoethyl]-N'-[(1S)-1-phenylethyl]butanediamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C40H65N7O5S
assistant