4H-1-benzopyran-4-one, 6-[(1S,2R)-2-(3,6-dihydro-6-oxo-2H-pyran-2-yl)-2-hydroxy-1-phenylethyl]-2,3-dihydro-5,7-dihydroxy-2-phenyl-, (2S)- 5,7-Dihydroxy-6-[2-hydroxy-2-(6-oxo-3,6-dihydro-2H-pyran-2-yl)-1-phenyl-ethyl]-2-phenyl-chroman-4-one Goniolactone B InChI=1/C28H24O7/c29-18-14-21(16-8-3-1-4-9-16)34-22-15-19(30)26(28(33)25(18)22)24(17-10-5-2-6-11-17)27(32)20-12-7-13-23(31)35-20/h1-11,13,15,20-21,24,27,30,32-33H,12,14H2/t20?,21-,24-,27-/m0/s rel-(2R)-5,7-dihydroxy-6-[(1R,2S)-2-hydroxy-2-(6-oxo-3,6-dihydro-2H-pyran-2-yl)-1-phenylethyl]-2-phenyl-2,3-dihydro-4H-chromen-4-one