Secondary metabolites from Sida rhombifolia L. (Malvaceae) and the vasorelaxant activity of cryptolepinone.

Secondary metabolites from Sida rhombifolia L. (Malvaceae) and the vasorelaxant activity of cryptolepinone.
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来自SIDA Rhbifolia L.(Malvaceae)的次生代谢产物和加密蛋白酶的血管长期活性。

DOI:
10.3390/molecules18032769
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发表时间:
2013-03-01
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
通讯作者:
de Fátima Vanderlei de Souza M
de Fátima Vanderlei de Souza M
中科院分区:
其他
文献类型:
--
作者:
Chaves OS;Gomes RA;Tomaz AC;Fernandes MG;das Graças Mendes L Jr;de Fátima Agra M;Braga VA;de Fátima Vanderlei de Souza M

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菱叶黄花稔的化学成分研究。(锦葵科)导致通过色谱技术分离11种次级代谢产物:谷甾醇(1a)和豆甾醇(1 B),谷甾醇-3-O-β-d-吡喃葡萄糖苷(2a)和豆甾醇-3-O-β-d-吡喃葡萄糖苷(2 B),脱镁叶绿素A(3),173-乙氧基脱镁叶绿素A(4),132-羟基脱镁叶绿素B(5),173-乙氧基脱镁叶绿素B(6),5,7-二羟基-4’-甲氧基黄酮(7)、cryptolepinone(8)和cryptolepine的盐(9)。它们的结构通过使用一维和二维技术的1H-和13 C-NMR进行了鉴定。此外,本文首次报道了Cryptolepinone对大鼠肠系膜动脉环的舒张作用。
The phytochemical study of Sida rhombifolia L. (Malvaceae) led to the isolation through chromatographic techniques of eleven secondary metabolites: sitosterol (1a) and stigmasterol (1b), sitosterol-3-O-β-d-glucopyranoside (2a) and stigmasterol-3-O-β-d-glucopyranoside (2b), phaeophytin A (3), 173-ethoxypheophorbide A (4), 132-hydroxy phaeophytin B (5), 173-ethoxypheophorbide B (6), 5,7-dihydroxy-4'-methoxyflavone (7), cryptolepinone (8) and a salt of cryptolepine (9). Their structures were identified by 1H- and 13C-NMR using one- and two-dimensional techniques. In addition, the vasorelaxant activity of cryptolepinone in rat mesenteric artery rings is reported herein for the first time.
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