You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (4-methoxyphenyl)methyl (4R)-4-[(3R,5R,8R,9S,10S,12S,13R,14S,17R)-3-[3-[3-[bis(2-chloroethyl)amino]phenyl]propanoyloxy]-12-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoate into its molecular formula.
user
C45H63Cl2NO6
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