You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[3-[(1S)-1-[[2-[(1R,3R)-1-acetyloxy-3-[[(2S,5R)-2-[(2S)-butan-2-yl]-5-[5-(2,5-dioxopyrrol-1-yl)pentanoyl-methylamino]-6-methyl-4-oxoheptanoyl]-methylamino]-4-methylpentyl]-1,3-thiazole-4-carbonyl]amino]-2-phenylethyl]-2-methyloxirane-2-carbonyl]amino]acetic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C49H68N6O12S
assistant