You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[(2S,5R,8S,11S,15R)-8-[4-[[(4S)-4-[3-[2-(2-aminoethoxy)ethoxy]propanoylamino]-5-[4-[(2S,5S,11S,14R)-14-benzyl-11-(carboxymethyl)-5-[3-(diaminomethylideneamino)propyl]-3,6,9,12,15-pentaoxo-1,4,7,10,13-pentazacyclopentadec-2-yl]butylamino]-5-oxopentanoyl]amino]butyl]-5-benzyl-11-[3-(diaminomethylideneamino)propyl]-15-hydroxy-3,6,9,12-tetraoxo-1,4,7,10,13-pentazacyclopentadec-2-yl]acetic acid;methane into molecular formula.
user
C68H110N20O19
assistant