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 ethyl 6-[[(4aS,6aR,6aS,6bR,8aR,9R,10S,12aR,14bS)-10-acetyloxy-9-(acetyloxymethyl)-2,2,6a,6b,9,12a-hexamethyl-1,3,4,5,6,6a,7,8,8a,10,11,12,13,14b-tetradecahydropicene-4a-carbonyl]amino]hexanoate .
user
C42H67NO7
assistant