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system
Provide the molecular formula for the IUPAC named substance 4-[[12-[(3R)-3-ethoxycarbonylpiperidin-1-yl]-8-oxo-15-oxa-14-azatetracyclo[7.6.1.02,7.013,16]hexadeca-1(16),2,4,6,9,11,13-heptaen-10-yl]amino]butanoic acid .
user
C26H27N3O6
assistant