63 数種の海星綱動物に含まれるオリゴ配糖体の構造研究
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As for the constituent steroid oligoglycosides of star fish, thornasteroside A, thornasterol B glycoside (from Acanthaster planci) and Asterosaponins A, B, glycosides B_1 and B_2 (from Asterias amurensis) have so far been isolated and characterized. Now, a new steroid hexaglycoside, mp250°, was isolated as pure crystals from the solvolysis products of a glycoside fraction of water extracts of Astropecten latespinosus M. (Astropectinidae) and assigned the structure 1. From the whole body of Acanthaster planci (Acanthasteridae), another new steroid pentaglycoside sodium sulfate, mp 208-210°, was also isolated in a pure crystals and a tentative structure (2) was proposed. Two constituents (3), mp199-201° and (4), mp209-212° of Luidia maculata M. et T. (Luididae), and one (5), mp214-215°, of Luidia quinaria von Martens (Luididae) were also obtained and their structures were investigated.
- 天然有機化合物討論会の論文
- 1980-09-10
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