Dihydrolindbladiones, three new naphthoquinone pigments from a myxomycete Lindbladia tubulina.
Three new naphthoquinone pigments, 6,7-dimethoxydihydrolindbladione (1), dihydrolindbladione (2), and 6-methoxydihydrolindbladione (3), have been isolated from a myxomycete Lindbladia tubulina, and their structures were elucidated by spectral data. Compound 3 appreciably exhibited a reversal effect of multidrug resistance. Lindbladione (4), the major pigment of this myxomycete, was also isolated from Cribraria intricata.
Misono
Yuka
Y
Graduate School of Pharmaceutical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
Ishikawa
Yae
Y
Yamamoto
Yukinori
Y
Hayashi
Masahiko
M
Komiyama
Kanki
K
Ishibashi
Masami
M
D018432:Drug Resistance, Multiple / Q000187:drug effects; D007564:Japan; D015394:Molecular Structure; D009235:Myxomycetes / Q000737:chemistry*; D009285:Naphthoquinones / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D010860:Pigments, Biological / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013056:Spectrophotometry, Ultraviolet
D009285:Naphthoquinones; D010860:Pigments, Biological