4H-1-benzopyran-4-one, 2-[(2R,3R)-2,3-dihydro-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-(hydroxymethyl)-8-methoxy-1,4-benzodioxin-6-yl]-5,7-dihydroxy- 5,7-Dihydroxy-2-[3-(4-hydroxy-3,5-dimethoxy-phenyl)-2-hydroxymethyl-8-methoxy-2,3-dihydro-benzo[1,4]dioxin-6-yl]-chromen-4-one InChI=1/C27H24O11/c1-33-19-6-13(7-20(34-2)25(19)32)26-23(11-28)38-27-21(35-3)4-12(5-22(27)37-26)17-10-16(31)24-15(30)8-14(29)9-18(24)36-17/h4-10,23,26,28-30,32H,11H2,1-3H3/t23-,26-/m1/s Palstatin rel-5,7-dihydroxy-2-[(2R,3R)-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-(hydroxymethyl)-8-methoxy-2,3-dihydro-1,4-benzodioxin-6-yl]-4H-chromen-4-one