The structure of 7-oxodihydrokarounidiol [7-oxo-D : C-friedo-olean-8-ene-3α, 29-diol], isolated from the seeds of Trichosanthes kirilowii (Cucurbitaceae), was determined by chemical correlation with karounidiol [D : C-friedo-oleana-7, 9(11)-diene-3α, 29-diol] from the same source. Two other natural products, viz. bryonolic acid (3β-hydroxy-D : C-friedo-olean-8-en-29-oic acid) and bryononic acid (3-oxo-D : C-friedo-olean-8-en-29-oic acid), were also correlated with karounidiol.
从葫芦科植物 Trichosanthes kirilowii 的种子中分离出的 7-oxodihydrokarounidiol [7-oxo-D : C-friedo-olean-8-ene-3α, 29-diol] 与来自同一来源的 karounidiol [D : C-friedo-oleana-7, 9(11)-diene-3α, 29-diol] 通过
化学关联确定了结构。另外两种
天然产物,即
香叶醇酸(3β-羟基-D : C 炸过油桐-8-烯-29-酸)和香叶
酮酸(3-氧代-D : C 炸过油桐-8-烯-29-酸)也与卡鲁尼二醇相关。