You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-(hydroxymethyl)-6-[[3,4,5-trihydroxy-6-[[17-(1-methoxypropan-2-yl)-4,4,9,13,14-pentamethyl-2,3,7,8,10,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]oxan-2-yl]methoxy]oxane-3,4,5-triol by IUPAC nomenclature, provide its molecular formula.
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C38H64O12
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