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血桐樹皮部單寧成分之研究

Studies on Tannins of Macaranga tanarius (L.) Muell. et Arg.

摘要


血桐[Macaranga tanarius (L.) Muell. et Arg. (Euphoubiaceae)]樹皮以含水丙酮冷浸抽取,分離10種單寧成分,分別為corilagin (1),mallotinic acid (2),geraniin (3),macarinin A (4),putranjivain B (5),putranjivain A (6),mallotunin (7),mallophilinin (8),repandusinic acid A (9)及phyllanthusiin C (10)。各化合物之構造系以其物理化學性質及核磁共振光譜等資料推定之,並與文獻記載資料或標準品直接比對而確認之。

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並列摘要


Chemical examination of the bark of Macaranga tanarius (L.) Much. et Arg. (Euphorbiaceae) has led to the isolation of 10 known tannins (1-10). These tannins are corilagin (1), mallotinic acid (2), geraniin (3), marcarinin A (4), putranjivain B (5), putranjivain A (6), mallotunin (7), mallophihinin (8), repandusinic acid A (9) and phyllanthusiin C (10). These structures were identified on the basis of their physical properties and spectroscopic evidences.

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