(5S)-5-methyl-3-[(2R,8R,13R)-2,8,13-trihydroxy-13-[(2R,5R)-5-[(1R)-1-hydroxytridecyl]oxolan-2-yl]tridecyl]-5H-furan-2-one (5S)-5-methyl-3-[(2R,8R,13R)-2,8,13-trihydroxy-13-[(2R,5R)-5-[(1R)-1-hydroxytridecyl]tetrahydrofuran-2-yl]tridecyl]-5H-furan-2-one (5S)-5-methyl-3-[(2R,8R,13R)-2,8,13-trihydroxy-13-[(2R,5R)-5-[(1R)-1-hydroxytridecyl]-2-tetrahydrofuranyl]tridecyl]-5H-furan-2-one NSC606194 NCI60_004657 ANNONACIN B83674F237