A mixture of nine cerebrosides and a monoacylmonogalactosylglycerol were seperated from the leaves of Clinacanthus nutans. The structures of the cerebrosides were characterized as 1-O-β-D-glucosides of phytosphingosines, which comprised a common long-chain base, (2S,3S,4R,8Z)-2-amino-8(Z)-octadecene-1,3,4-triol with nine 2-hydroxy fatty acids of varying chain lengths (C16, C18, C20—26) linked to the amino group. The glycosylglyceride was characterized as (2S)-1-O-linolenoyl-3-O-β-D-galactopyranosylglycerol. The structures were established on the basis of the spectroscopic data and chemical reactions.
从坚果蕨(Clinacanthus nutans)叶片中分离出了由九种脑苷脂和一种单酰基半
乳糖甘油组成的混合物。这些脑苷脂的结构被表征为
植物鞘氨醇的 1-O-β-<小>D小>-
葡萄糖苷,由一个共同的长链基团 (2S,3S,4R,8Z)-2-
氨基-8(Z)-
十八烯-1,3,4-三醇和九个不同链长(C16、C18、C20-26)的 2-羟基
脂肪酸组成,与
氨基相连。这种糖基
甘油的特征是(2S)-1-O-亚麻酰基-3-O-β-<小>D小>-
吡喃半
乳糖基
甘油。这些结构是根据光谱数据和
化学反应确定的。