You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (2S)-2-[[(4S)-4-[[(4S)-4-[[4-[(2-amino-4-hydroxypteridin-6-yl)methylamino]benzoyl]amino]-4-carboxybutanoyl]amino]-4-carboxybutanoyl]amino]-6-[[4-[4-[2-[(3',6'-dihydroxy-3-oxospiro[2-benzofuran-1,9'-xanthene]-5-yl)carbamothioylamino]ethylcarbamoyloxy]triazol-1-yl]benzoyl]amino]hexanoic acid .
user
C63H60N16O18S
assistant