You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (2R,5S,11S,14S)-11-(carboxymethyl)-5-[3-(diaminomethylideneamino)propyl]-2-[(4-hydroxyphenyl)methyl]-3,6,9,12,18-pentaoxo-1,4,7,10,13-pentazacyclooctadecane-14-carboxylic acid .
user
C27H38N8O10
assistant