... ,13,22-tetramethyl-2-oxo-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16 ... 10E,14E,16E,22Z)-(1R,4S,5'S,6S,6'R,8R,12S,13S,20R,21R,24S)-21,24- ... ,13,22-tetramethyl-2-oxo-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16 ... 62-43)23-34-20-33(61-47)16-15-27(4)42(26(3)13-12-14-32 ... 46(61-41)22-33-19-32(60-46)15-14-26(4)42(25(3)12-11-13 ... 52-9)40(49)29(7)55-37/h12-15,17-19,25-26,28,30-31,33-45 ...