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 [(1R,2R,4aR,5S,6R)-6-hydroxy-1-(hydroxymethyl)-5-[2-[(3R)-3-hydroxypyrrolidin-1-yl]-2-oxoethyl]-1,4a-dimethyl-2,3,4,5,6,7,8,8a-octahydronaphthalen-2-yl] N-ethylcarbamate .
user
C22H38N2O6
assistant