You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as (1S,4R,6R,7Z,13S,18R)-13-(cyclopentyloxycarbonylamino)-18-[8-(cyclopropylmethylsulfanyl)-2-ethoxyquinolin-4-yl]oxy-2,15-dioxo-3,16-diazatricyclo[14.3.0.04,6]nonadec-7-ene-4-carboxylic acid using the IUPAC nomenclature.
user
C39H50N4O8S
assistant