You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule (2R,6R)-6-[(3S,5R,7R,10S,13R,17R)-3-[3-[4-(3-aminopropylamino)butylamino]propylamino]-7-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-methylheptanoic acid into molecular formula.
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C37H70N4O3
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