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 2-(2,3-dihydro-1H-inden-5-ylmethyl)-1-ethyl-3-[3-(oxolan-3-yloxy)propyl]guanidine using the IUPAC nomenclature.
user
C20H31N3O2
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