The annulation of stilbene compounds were studied. Phenanthrene derivates-interme diates of tylophorine were synthesized by annulation from-2,3-bis(3,4-dimethoxyphen yl)acrylic acid and-2,3-bis(3,4-dimethoxyphenyl) acrylonitrile with phenyliodine diace tate as a friendly and high efficient catalyzer.The route was first reported, whose application foreground would be promising.The catalyzer will be used to study of synthesi- zing a series of new phenanthrenes.

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In-vivo neutron and gamma spectra of depleted uranium sphere and vanadium sphere under central D-T neutron source were measured,with a 18 mm×20 mm stilbene crystal detector, at 7,10,13,16,19,22 cm away to the center in 45° direction in depleted-uranium sphrer, and 1.8,4.8,8.3 cm away to the center in the 0° direction in V sphere.

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OBJECTIVE: To investigate the effect of stilbene glucoside on hypoxia-reoxygenation injury of human umbilical vein endothelial cells.

目的：觀察二苯乙烯苷對人臍靜脈血管內(nèi)皮細(xì)胞缺氧/復(fù)氧損傷是否具有保護(hù)作用。

Stilbene glucoside protects HUVECs against hypoxia-reoxygenation injury, which has superior therapeutical effect to that of prevention.

二苯乙烯苷對血管內(nèi)皮細(xì)胞缺氧復(fù)氧損傷具有明顯的保護(hù)作用人人摸人人操人人爱人人看，而且其治療作用優(yōu)于預(yù)防作用www九一在线视频。

The intervention experiment was divided into the control, hypoxia-reoxygenation and stilbene glucoside groups, with each group were repeated for 6 times.

采用人臍靜脈血管內(nèi)皮細(xì)胞建立缺氧復(fù)氧損傷模型，干預(yù)實驗分為8組粉色国产毛片，每組重復(fù)6次亚洲国产欧美日韩在线人成。

Resveratrol is a naturally occurring stilbene found in a limited number of unrelated plant species such as giant knotweed rhizome,grape,peanut or pine.

Res及其糖苷只存在于有限的植物之中，如虎杖三级国产欧美性爱片、葡萄野狼福利视频、花生、松樹等亚洲欧美另类片专区。

On the one hand, one benzen ring of stilbene was substituted by one pyridine ring for the purpose of evaluating the bioactivities of azastilbenes. On the other hand, some stilbene derivatives with different substituents in different sites were designed for the study of SAR.

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Resveratrol Synthase is a kind of stilbene synthase.

白藜蘆醇合酶(Resveratrol Synthase内射美女处女视频，RS)是二苯乙烯合酶(stilbene synthase，簡稱STS)中的一類免费看一级黄色网站。

The maximal absorption wavelength of the nitro-stilbene derivatives with an ether bond exhibited approximate 30 to 40 nm bathochromic shift compared to that of nitro-stilbene dyes with an ester bond.

相對于酯鍵而言美女网站操视频，通過醚鍵連接的對硝基二苯乙烯類分子的最大吸收波長有一個大約30至40 nm的紅移現(xiàn)象。

In the presence of different sensitizers, we measured the rate of photoisomerization of t-stilbene to cis-stilbene as a method for evaluating the efficiency of these compounds.

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