You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3'R,4S,6'R,7'S,8'Z,11'S,12'S)-7-chloro-12'-(cyclopropylmethyl)-7'-hydroxy-11'-methyl-13',13'-dioxospiro[2,3-dihydro-1H-naphthalene-4,22'-20-oxa-13lambda6-thia-1,14-diazatetracyclo[14.7.2.03,6.019,24]pentacosa-8,16(25),17,19(24)-tetraene]-15'-one by IUPAC nomenclature, provide its molecular formula.
user
C35H43ClN2O5S
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