You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule magnesium;methyl (3R,8Z,12Z,13Z,19Z,21S,22S)-16-ethenyl-11-ethyl-12-(hydroxymethylidene)-17,21,26-trimethyl-4-oxo-22-[3-oxo-3-[(E,7R)-3,7,11-trimethyldodec-2-enoxy]propyl]-23-aza-7,24,25-triazanidahexacyclo[18.2.1.15,8.110,13.115,18.02,6]hexacosa-2(6),5(26),8,10,13,15,17,19-octaene-3-carboxylate into molecular formula.
user
C50H63MgN4O6-
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