You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 1-[2-[[4-methyl-1-[(2-methyl-2,3,5,6,7,7a-hexahydrofuro[3,2-b]pyran-3a-yl)methyl]piperidin-4-yl]amino]acetyl]pyrrolidine-2-carbonitrile ?
user
C22H36N4O3
assistant