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 (1R,9R,12S,13S,14R,16S)-13-ethyl-8-methyl-15-undecyl-8-aza-15-azoniahexacyclo[14.2.1.01,9.02,7.010,15.012,17]nonadeca-2,4,6-triene-14,18-diol using the IUPAC nomenclature.
user
C31H49N2O2+
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