1. The mucilage of Chondrus ocellatus Holmes has been investigated by the partial methanolysis method.2. A new disaccharide, the structure of which is shown to be 4-O-β-d-galactopyranosyl-3,6-anhydro-d-galactose, has been isolated in the form of its dimethylacetal and methyl β-glycoside in a good yield.3. The disaccharide has been named carrabiose.4. It has been suggested that 1→3′ linked carrabiose represents the repeating unit for the most part of the carbohydrate of the Chondrus mucilage.
1.用部分
甲醇分解法研究了霍姆斯软骨虫(Chondrus ocellatus Holmes)的粘液。 2. 以二甲基
乙缩醛和甲基 β-糖苷的形式分离出了一种新的二糖,其结构被证明为 4-O-β-d-
吡喃半
乳糖基-3,6-脱
水-d-半
乳糖,产率很高。4 有人认为,1→3′连接的
阿拉伯糖代表了软骨黏液中大部分
碳水化合物的重复单位。