From the ethanol extract of Selaginella moellendorffii Hieron., a new flavone O-glycoside and three known flavone C-glycosides have been isolated and identified as 5-carboxymethyl-4′-hydroxyflavone-7-O-β-D-glucopyra...From the ethanol extract of Selaginella moellendorffii Hieron., a new flavone O-glycoside and three known flavone C-glycosides have been isolated and identified as 5-carboxymethyl-4′-hydroxyflavone-7-O-β-D-glucopyranoside 1, 6,8-di-C-β-D-glueopyranosylapigenin 2, 6-C-[3-D-glucopyranosyl-8-C-β-D-xylopyranosyl apigenin 3, 6-C-B-D-xylopyranosyl-8-C-β-glucopyranosylapigenin 4, respectively. Their structures were elucidated by spectroscopic methods.展开更多
A new flavone glycoside, 5,8-dihydroxy-4',6,7-trimethoxyflavone 8-O-(-D-glucopyranoside 1, together with three known flavonoids, pedalitin 2, cirsimartin 3 and genkwanin 4, were isolated from the aerial parts of I...A new flavone glycoside, 5,8-dihydroxy-4',6,7-trimethoxyflavone 8-O-(-D-glucopyranoside 1, together with three known flavonoids, pedalitin 2, cirsimartin 3 and genkwanin 4, were isolated from the aerial parts of Isodon enanderianus. Their structures were determined on the basis of spectral data.展开更多
4'-甲基-7-(2-羟基-3-异丙胺基丙氧基)黄酮盐酸盐(SIPI-549)对乌头碱诱发的大鼠心律失常有预防作用,对氯化钡诱发的家兔心律失常有治疗作用,对哇巴因诱发的豚鼠心律失常则无明显作用。抗心律失常作用比普萘洛尔强,但比胺碘酮弱。对...4'-甲基-7-(2-羟基-3-异丙胺基丙氧基)黄酮盐酸盐(SIPI-549)对乌头碱诱发的大鼠心律失常有预防作用,对氯化钡诱发的家兔心律失常有治疗作用,对哇巴因诱发的豚鼠心律失常则无明显作用。抗心律失常作用比普萘洛尔强,但比胺碘酮弱。对狗急性心肌梗塞后24 h 的心律失常,本品的抗心律失常作用比利多卡因弱,但负性频率作用比其为强。展开更多
The effective insecticide component of natural growth Daphne genkwa Sieb.et Zucc.was extracted.The obtained material was preliminarily proved to have a favorable insecticidal effect by nonstandard insecticidal experim...The effective insecticide component of natural growth Daphne genkwa Sieb.et Zucc.was extracted.The obtained material was preliminarily proved to have a favorable insecticidal effect by nonstandard insecticidal experiments,which used Chinese blister beetle.The effective component was determined as 5,4’-dihydroxy-7-methoxylflavone by UV,NMR and chemical methods.展开更多
基金supported by the National Natural Science Foundation of China (No.30470193).
文摘From the ethanol extract of Selaginella moellendorffii Hieron., a new flavone O-glycoside and three known flavone C-glycosides have been isolated and identified as 5-carboxymethyl-4′-hydroxyflavone-7-O-β-D-glucopyranoside 1, 6,8-di-C-β-D-glueopyranosylapigenin 2, 6-C-[3-D-glucopyranosyl-8-C-β-D-xylopyranosyl apigenin 3, 6-C-B-D-xylopyranosyl-8-C-β-glucopyranosylapigenin 4, respectively. Their structures were elucidated by spectroscopic methods.
文摘A new flavone glycoside, 5,8-dihydroxy-4',6,7-trimethoxyflavone 8-O-(-D-glucopyranoside 1, together with three known flavonoids, pedalitin 2, cirsimartin 3 and genkwanin 4, were isolated from the aerial parts of Isodon enanderianus. Their structures were determined on the basis of spectral data.
文摘4'-甲基-7-(2-羟基-3-异丙胺基丙氧基)黄酮盐酸盐(SIPI-549)对乌头碱诱发的大鼠心律失常有预防作用,对氯化钡诱发的家兔心律失常有治疗作用,对哇巴因诱发的豚鼠心律失常则无明显作用。抗心律失常作用比普萘洛尔强,但比胺碘酮弱。对狗急性心肌梗塞后24 h 的心律失常,本品的抗心律失常作用比利多卡因弱,但负性频率作用比其为强。
文摘The effective insecticide component of natural growth Daphne genkwa Sieb.et Zucc.was extracted.The obtained material was preliminarily proved to have a favorable insecticidal effect by nonstandard insecticidal experiments,which used Chinese blister beetle.The effective component was determined as 5,4’-dihydroxy-7-methoxylflavone by UV,NMR and chemical methods.