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 4-[(16Z,21S,22S)-11-ethyl-16-(hydroxymethylidene)-12,17,21,26-tetramethyl-4-oxo-7,23,24,25-tetrazahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-1,5(26),6,8,10(25),11,13,15(24),17,19-decaen-22-yl]butanoate .
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C34H36N4O4
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