You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[2-[(1S,6S,11R,14R,15S,18S,23S)-8-cyano-6,14,15,21,21-pentamethyl-9-oxospiro[2-azahexacyclo[13.8.0.01,3.05,14.06,11.018,23]tricosa-2,4,7-triene-10,1'-cyclopropane]-18-yl]oxyethyl]-3-methyl-2-nitroguanidine by IUPAC nomenclature, provide its molecular formula.
user
C34H46N6O4
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