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 1-(1-ethylpyrrolidin-2-yl)-N-(pyridin-3-ylmethyl)-N-(thiophen-2-ylmethyl)methanamine using the IUPAC nomenclature.
user
C18H25N3S
assistant