You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1'R,9'R,10'S,12'S)-17'-(cyclopropylmethyl)-12'-(2-hydroxyethyl)-4'-methoxyspiro[1,3-dioxolane-2,13'-17-azatetracyclo[7.5.3.01,10.02,7]heptadeca-2(7),3,5-triene]-10'-ol by IUPAC nomenclature, provide its molecular formula.
user
C25H35NO5
assistant