作者:Junko Koyama、Tamaki Ogura、Kiyoshi Tagahara、Takao Konoshima、Mutsuo Kozuka
DOI:10.1016/0031-9422(92)83662-i
日期:1992.8
Abstract The methanol extract of Rubia cordifolia afforded two new naphthoquinones, 2-carbamoyl-3-methoxy-1,4- naphthoquinone and 2-carbamoyl-3-hydroxy-1,4-naphthoquinone, isolated along with a known naphthoquinone and naphthohydroquinone and six known anthraquinones. The structures of the new compounds were determined on the basis of spectroscopic data and direct comparisons with synthetic compounds
摘要 茜草的甲醇提取物提供了两种新的萘醌,2-氨基甲酰基-3-甲氧基-1,4-萘醌和 2-氨基甲酰基-3-羟基-1,4-萘醌,与已知的萘醌和萘氢醌以及六已知蒽醌类。新化合物的结构是在光谱数据和与合成化合物的直接比较的基础上确定的。