You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-[(R)-1,4-dioxa-8-azaspiro[4.5]decan-8-yl(thiophen-2-yl)methyl]-2-ethyl-[1,3]thiazolo[3,2-b][1,2,4]triazol-6-ol into molecular formula.
user
C18H22N4O3S2
assistant