. "[(2R,3R)-3-(4-Hydroxy-3-methoxyphenyl)-5-methoxy-9-oxo-2,3-dihydro-9H-pyrano[2,3-f][1,4]benzodioxin-2-yl]methyl acetate" . . . "Durantin A" . . . . . . . . . . . . "Durantin A" . . .