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system
Provide the molecular formula for the IUPAC named substance (E)-3-[(1S,2S,4S,5S,10S)-5-ethyl-12-methoxy-15-(trifluoromethyl)-18,21-dioxa-7,17-diazapentacyclo[8.7.4.01,10.02,7.011,16]henicosa-11,13,15-trien-4-yl]-1-hydroxy-4-methoxybut-3-en-2-one .
user
C26H33F3N2O6
assistant