You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (4R,5R,8R,11S,14R,17S)-14-benzyl-4,5-dihydroxy-3,6,9,12,15-pentaoxo-11-[[4-(4-phenylmethoxycarbonylphenyl)phenyl]methyl]-8-(thiophen-2-ylmethyl)-2,7,10,13,16-pentazabicyclo[17.2.2]tricosa-1(21),19,22-triene-17-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
user
C52H49N5O11S
assistant