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 (1S,2R,3S,9bS)-1,2-bis(phenylmethoxy)-3-(phenylmethoxymethyl)-1,2,3,9b-tetrahydropyrrolo[1,2-b][1,2]benzoxazole .
user
C32H31NO4
assistant