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 sodium;(2R,5S,6R)-6-acetamido-5-hydroxy-7-(4-hydroxyphenyl)-2-(2-methylpropyl)-4-oxoheptanoic acid;methanol;methyl (2R,5S,6R)-6-acetamido-7-(4-bromophenyl)-5-hydroxy-2-(2-methylpropyl)-4-oxoheptanoate;[(2-oxohydrazinyl)hydrazinylidene]azanide .
user
C40H61BrN7NaO13
assistant