(3R)-6,8-dihydroxy-3-(3-hydroxy-4-methoxyphenyl)isochroman-1-one
(3R)-6,8-dihydroxy-3-(3-hydroxy-4-methoxy-phenyl)isochroman-1-one
(3R)-6,8-dihydroxy-3-(3-hydroxy-4-methoxyphenyl)-1-isochromanone