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What is the molecular formula of the compound with this IUPAC name (1S,4R,8R,10S,11R,12S,13R,16R,18S,21R)-18-[(2S)-4-(azetidin-3-ylmethyl)morpholin-2-yl]oxy-8-[(1S)-1-ethoxy-2-hydroxy-2-methylbutyl]-4,12,17,17-tetramethyl-9-oxahexacyclo[11.9.0.01,21.04,12.05,10.016,21]docosan-11-ol ?
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C40H68N2O6
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