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 ethyl 5-ethyl-4-[(1-hydroxycyclohexyl)methylamino]pyrrolo[2,1-f][1,2,4]triazine-6-carboxylate using the IUPAC nomenclature.
user
C18H26N4O3
assistant