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 but-3-enyl (5S,6S,7R)-3-(4-hydroxybutyl)-7-methyl-4-oxo-2-[pentyl(prop-2-enyl)carbamoyl]-10-thia-3-azatricyclo[5.2.1.01,5]decane-6-carboxylate .
user
C27H42N2O5S
assistant