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 methyl (13S,17S)-17-ethyl-13-[(1R,9R,10S,11R,12R,19R)-12-ethyl-10,11-dihydroxy-5-methoxy-10-[(methoxycarbonylamino)carbamoyl]-8-methyl-8,16-diazapentacyclo[10.6.1.01,9.02,7.016,19]nonadeca-2,4,6,13-tetraen-4-yl]-17-hydroxy-1,11-diazatetracyclo[13.3.1.04,12.05,10]nonadeca-4(12),5,7,9-tetraene-13-carboxylate .
user
C45H58N6O9
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