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Absolute Structure of Ionol Glucoside: A Single-Crystal X-Ray Analysis of Dendranthemoside A Pentaacetate.

1993; Pharmaceutical Society of Japan; Volume: 41; Issue: 10 Linguagem: Inglês

10.1248/cpb.41.1860

1347-5223

Hideaki Otsuka, Masaru Kido, Tomitake Tsukihara, Kumiko Tsukihara, Yasuyuki Takeda, Kazuo Yamasaki, Yoshio Takeda,

Carbohydrate Chemistry and Synthesis

By means of single crystal X-ray analysis of dendranthemoside A pentaacetate, the absolute configuration of the asymmetric center at the 9-position was determined to be R. The configurations of three other positions, which had been determined to be 3S, 5R and 6S by application of β-D-glucosylation induced shift trends, were verified.