紅肉橙蘭樹皮部單寧成分之研究   全文下載

Studies on Tannins from the Bark of Macaranga sinensis (Baill.) Mueli.-Arg.

紅肉橙蘭（Macaranga sinensis）之樹皮以含水丙酮冷浸萃取，萃取液利用各種管柱層析，分離得到brevifolin carboxylic acid（1）, corilagin（2）, tercatain（3）, mallorepanin（4）, furosin（5）, geraniin（6）, macarinin A（7）, chebulagic acid（8）, macarinin B（9）, putranjivain A（10）, phyllanthusiin C（11）, bixanin（12）及1-0-galloyl-2,4-（4-hydroxychebuloyl）-3,6-（R）-HHDP-s-D-glucopyranose（13）等13種化合物，其中化合物13為新化合物。各化合物之構造係以其物理化學性質及核磁共振光譜等數據推定，已知化合物並與文獻所載數據或標準品直接比對確認之。"

Together with twelve known compounds - brevifolincarboxylic acid(1), corilagin(2), tercatain(3), mallorepanin(4), furosin(5), geraniin(6), macarinin A(7), chebulagic acid(8), macarinin B(9), putranjivain A(10), phyllanthusiin C(11), bixanin(12), a new hydrolyzable tannin, 1-0-galloyl-2,4-(4-hydroxychebuloyl)-3,6-(R)-HHDP-β-D-glucopyranose(13) was isolated from the bark of Macaranga sinensis (Baill.) Muell.-Arg. (Euphorbiaceae). Structures of these tannins were established on the basis of their physical properties and spectroscopic evidence.