encountered so far in nature. A non-glycosidic iridoid, mentzetriol, has been characterized solely by spectroscopic means and a structure is proposed. The secoiridoid secoxyloganin has been found for the first time in a plant source, and the coumarin glucoside scopolin has been isolated from two species of Mentzelia . 13 C and 1 H NMR spectra of several iridoid compounds are presented. The biosynthesis
摘要 八种门氏菌(Loasaceae)已对环
烯醚萜苷进行了研究。除了已知的
葡萄糖苷 deutzioside、decaloside、mongolioside、
马钱素和 sweroside,一些新的化合物已经被分离出来并通过
化学和光谱方法表征。6'-O-乙酰
氘代苷是在单一物种中发现的,而二糖苷化合物
葡糖基-十
氯苷、
阿洛糖基-十
氯苷和奎诺糖苷-十苷分别从一个或多个物种中分离出来。此外,还描述了一种新化合物,环
氧十烷苷(= 11-羟基-deutzioside),以及
葡糖基-环
氧十烷苷、
阿洛糖基-环
氧十烷苷和薄荷基-环
氧十烷苷。最后一种化合物含有 4-
脱氧-α-1-赤型-
吡喃戊糖基部分,其母体糖,命名为薄荷糖,迄今尚未在自然界中遇到。一种非糖苷类环
烯醚萜,mentzetriol,已单独通过光谱手段表征,并提出了一种结构。首次在植物来源中发现了secoiridoid secoxyloganin,
香豆素葡糖苷Scopolin