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 [(4R,4aS,7R,7aR,12bS)-3-(cyclopropylmethyl)-9-hydroxy-7-[2-methylpropyl-[3-[4-(trifluoromethyl)phenyl]prop-2-ynoyl]amino]-1,2,4,5,6,7,7a,13-octahydro-4,12-methanobenzofuro[3,2-e]isoquinolin-4a-yl] acetate .
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