(1′R,2R,4S,4′S,5S,6S,8′R,10′E,13′R,14′E,16′E,20′R,21′R,24′S)-6-[(2E)-2-Buten-2-yl]-4,24′-dihydroxy-21′-methoxy-5,11′,13′,22′-tetramethyl-3,4,5,6-tetrahydro-2′H-spiro[pyran-2,6′-[3,7,19]trioxatetracycl o[15.6.1.1~4,8~.0~20,24~]pentacosa[10,14,16,22]tetraen]-2′-one

(1′R,2R,4S,4′S,5S,6S,8′R,10′E,13′R,14′E,16′E,20′R,21′R,24′S)-6-[(2E)-2-Buten-2-yl]-4,24′-dihydroxy-21′-methoxy-5,11′,13′,22′-tetramethyl-3,4,5,6-tetrahydro-2′H-spiro[pyran-2,6′-[3,7,19]trioxatetracycl o[15.6.1.1~4,8~.0~20,24~]pentacosa[10,14,16,22]tetraen]-2′-one

LL-F28249γ