You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 10-[2-[(2S,6S)-2,6-dimethylpiperidin-1-yl]-2-oxoethyl]-12-ethyl-4-methyl-5-oxa-1,10,11-triazatricyclo[6.4.0.02,6]dodeca-2(6),3,7,11-tetraen-9-one .
user
C20H26N4O3
assistant