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system
Provide the molecular formula for the IUPAC named substance tert-butyl 5-[(6R,9R,13R)-6-methyl-5,8,11,15,18-pentaoxo-9-(1,3-thiazol-4-ylmethyl)-14-oxa-4,7,10,17-tetrazaspiro[2.15]octadecan-13-yl]pentanoate .
user
C27H39N5O8S
assistant