preferred_name: (2R,3R,3AS,7R,10S,11R,12S,13S,14S,15S,16R,21S,24S,27S,29R,31R,32AS)-2-((2S)-3-AMINO-2-HYDROXYPROPYL)OCTACOSAHYDRO-12,15-DIHYDROXY-3-METHOXY-29-METHYL-23,30-BIS(METHYLENE)-7,11:10,14:13,16:21,24:27,31-PENTAEPOXY-2H-CYCLOHENTRIACONTA(B)FURAN-5,18(3H,4H)-DIONE