You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[5-(8-methyl-[1,2,4]triazolo[1,5-a]pyridin-6-yl)-6-propan-2-yl-4H-thieno[3,2-b]pyrrol-2-yl]-3-oxa-1,8-diazaspiro[4.5]dec-1-ene is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H26N6OS
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