14'-Hydroxymytoxin B InChI=1/C29H36O10/c1-17-6-9-27-15-35-24(33)12-18-7-10-36-28(25(18)34,19(31)14-30)8-4-3-5-23(32)39-20-13-22(38-21(27)11-17)29(16-37-29)26(20,27)2/h3,5,11-12,20-22,25,30,34H,4,6-10,13-16H2,1-2H3/b5-3-,18-12+/t20-,21?,22?,25?,26-,27-,28?,29+/m1/s rel-(4E,12Z,16R,16aS,17S,23aR)-9-glycoloyl-25-hydroxy-16a,21-dimethyl-6,7,10,11,16,16a,22,23-octahydro-3H,18H,19aH-spiro[5,9:16,18-dimethano[1,6,12]trioxacyclooctadecino[3,4-d]chromene-17,2'-oxirane]-