Saponin and Sapogenol. IV. Seeds Sapogenols of Aesculus turbinata BLUME. On the Configuration of Hydroxyl Functions in Ring E of Aescigenin, Protoaescigenin, and Isoaescigeninin Relation to Barringtogenol C and Theasapogenol A

ITIRO YOSIOKA; AKIKO MATSUDA; KANAKO IMAI; TADASHI NISHIMURA; ISAO KITAGAWA

doi:10.1248/cpb.19.1200

Saponin and Sapogenol. IV. Seeds Sapogenols of Aesculus turbinata B_LUME. On the Configuration of Hydroxyl Functions in Ring E of Aescigenin, Protoaescigenin, and Isoaescigeninin Relation to Barringtogenol C and Theasapogenol A

ITIRO YOSIOKA, AKIKO MATSUDA, KANAKO IMAI, TADASHI NISHIMURA, ISAO KITAGAWA

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ジャーナルフリー

1971 年 19 巻 6 号 p. 1200-1213

DOI https://doi.org/10.1248/cpb.19.1200

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抄録

1) The sapogenol composition of Japanese horsechestnuts (Aesculus turbinata B_LUME, Hippocastanaceae) has been clarified asbarringtogenol C (1), aescigenin (VI), protoaescigenin (VII) and 16-desoxy-barringtogenol C (IX). 2) The structure elucidation of the new sapogenol named 16-desoxy-barringtogenol C (IX) has been described in detail. 3) The full account on the configuration of hydroxyl functions in ring E of aescigenin (VI; 22α-OH), protoaescigenin (VII; 21β-0H, 22α-OH) and isoaescigenin (VIII; 21α-OH, 22α-OH) in relation to barringtogenol C (I) and theasapogenol A (II) has been presented.

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