Studies on the Steroidal Components of Domestic Plants. XXXIII. Constituents of Reineckia carnea KUNTH. (5). Structure of Kitigenin. (2).

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概要

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• It has been already established that the three hydroxyl groups in kitigenin, a tetrahydroxy sapogenin, are located at C_3,C_4 and C_5,and that the C_3-hydroxyl group is β and the C_4- and C_5-hydroxyl groups are in cis relation. It is now, clarified that the one remaining hydroxyl group is situated at C_1,from the result of the conversion of kitigenin to 25D, 5α-spirostan-1-one synthesized independently from tigogenone. And also, from the results of the C_3,C_4-acetonide formation and C_1,C_5-sulfite formation, it was clarified that the four hydroxyl groups are all β. Consequently, it was determined that kitigenin is 25D, 5β-spirostane-1β, 3β, 4β, 5-tetrol.

• 公益社団法人日本薬学会の論文
• 1961-09-25

著者

• 佐々木 勘造

  Research Laboratory, Shionogi & Co., Ltd.

• 佐々木 勘造

  Shionogi Research Laboratory Shionogi & Co. Ltd.

関連論文

• Linear Steroid Analogues. II. Syntheses of Linear Progesterone and Testosterone Analogues
• Linear Steroid Analogues. I. Transformation of Steroid into Linear Steroid Analogues
• Studies on the Steroidal Components of Domestic Plants. XXXI. Constituents of Reineckia carnea KUNTH. (3). Pentologenin and Kitigenin.
• Studies on the Steroidal Components of Domestic Plants. XXXIII. Constituents of Reineckia carnea KUNTH. (5). Structure of Kitigenin. (2).
• Studies on the Steroidal Components of Domestic Plants. XXXII. Constituents of Reineckia carnea KUNTH. (4). Structure of Kitigenin. (1).

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