You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named tert-butyl N-[(7Z,17S,18R)-4-(cyclopropylsulfonylcarbamoyl)-17-[(4-methoxyphenyl)methyl]-18-[7-methoxy-2-[2-(propan-2-ylamino)-1,3-thiazol-4-yl]quinolin-4-yl]oxy-2,15-dioxo-3,16-diazatricyclo[14.3.0.04,6]nonadec-7-en-14-yl]carbamate by IUPAC nomenclature, provide its molecular formula.
user
C50H63N7O10S2
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