Saponin and Sapogenol. XXVI. Steroidal Saponins from the Starfish Acanthaster planci L. (Crown of Thorns). (2). Structure of the Major Saponin Thornasteroside A

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概要

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• The major saponin named thornasteroside A (5) has been isolated from the whole body of starfish Acanthaster planci L. (crown of thorns). In order to facilitate the structural study, thornasteroside A (5) has been converted to a pentaglycoside (designated as dsp-1), which corresponds to a desulfated pregnane-type derivative of 5. On the bases of chemical reactions and physicochemical evidence, the structure of dsp-1 has been elucidated as 10. Based on the accumulated evidence in this and the preceding papers, the structure of thornasteroside A has been established as 20-hydroxy-6α-O-{β-D-fucopyranosyl (1→2)-β-D-galactopyranosyl (1→4)-[β-D-quinovopyranosyl (1→2)]-β-D-xylopyranosyl (1→3)-β-D-quinovopyranosyl}-5α-cholest-9 (11)-en-23-on-3β-yl sodium sulfate (5).

• 公益社団法人日本薬学会の論文
• 1978-06-25

著者

• 小林 資正

  Faculty of Pharmaceutical Sciences, Osaka University

• 北川 勲

  Faculty Of Pharmaceutical Sciences Osaka University

• Kobayashi M

  Fujisawa Pharmaceutical Co. Ltd. :(peresent Address)fujisawa Research Insitute Of America Inc. North

• Kobayashi M

  Faculty Of Pharmaceutical Sciences Osaka University

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