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Paper | Special issue | Vol 79, No. 1, 2009, pp.917-924
Published online, 27th November, 2008
DOI: 10.3987/COM-08-S(D)64
Petiolins D and E, Phloroglucinol Derivatives from Hypericum pseudopetiolatum var. kiusianum

Naonobu Tanaka, Takaaki Kubota, Haruaki Ishiyama, Yoshiki Kashiwada, Yoshihisa Takaishi, Junji Ito, Yuzuru Mikami, Motoo Shiro, and Jun'ichi Kobayashi*

*Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita 12 Nishi 6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan


A new phloroglucinol derivative possessing citran skeleton, petiolin D (1), and a new chromone glucoside, petiolin E (2), were isolated from aerial parts of Hypericum pseudopetiolatum var. kiusianum. The structures of 1 and 2 were elucidated by spectroscopic data, and a single-crystal X-ray diffraction analysis of 1 revealed that 1 was a racemic mixture.