@article{oai:tohoku-mpu.repo.nii.ac.jp:00000188,
 author = {豊田, 一貴 and Toyoda, Kazuki and 八百板, 康範 and Yaoita, Yasunori and 菊地, 正雄 and Kikuchi, Masao},
 issue = {53},
 journal = {東北薬科大学研究誌, Journal of Tohoku Pharmaceutical University},
 month = {Dec},
 note = {5, 6-Dimethoxy-2-isopropenylbenzofuran (1), which was isolated from the roots of Ligularia stenocephala MATSUM. et KOIDZ., was dissolved in MeOH and stand in a refrigerator for 5 days. The resultant mixture was shown to be composed of several products along with unchanged 1. Preparative HPLC of the mixture afforded eight compounds (2-9). Among them, compounds 2 and 3 were unstable and were found to change to compounds 4 - 11 during a few days in storage in the eluting solution of preparative HPLC [MeOH-H_20 (4 : 1)] at room temperature. The structures of compounds 2-11 were determined on the basis of spectral data.},
 pages = {43--50},
 title = {メタカラコウ属植物の成分研究(第4報) : メタカラコウの根より単離された5, 6-Dimethoxy-2-isopropenylbenzofuranの化学的安定性},
 year = {2006},
 yomi = {トヨダ, カズキ and ヤオイタ, ヤスノリ and キクチ, マサオ}
}