据信二苯并噻吩S-氧化物(DBTO)的光脱氧在溶液中产生基态原子氧[O(3 P)]。与其他活性氧(ROS)相比,O(3 P)具有强效和选择性,是一种独特的氧化剂。DBTO的衍生物已被用作O(3 P)的前体,以氧化多种分子,包括质粒DNA,蛋白质,脂质,硫醇和其他小有机分子。不幸的是,DBTO的光脱氧需要紫外线照射,这对于生物系统而言不是理想的波长范围,并且具有约0.003的低量子产率。在这项工作中,苯并[ b ]萘[1,2- d ]硒烯Se-氧化物,苯并[b ]萘并[2,1- d ]硒吩硒氧化物,二萘并[2,3- b:2' ,3'- d ]硒吩硒氧化物,和perylo [1,12- B,C,d ]硒吩合成了Se-氧化物,并研究了它们利用可见光生成O(3 P)的能力。苯并[ b ]萘[1,2- d ]硒烯Se-氧化物在420 nm处辐照会产生O(3 P)。此外,苯并[ b ]萘并[1,2- d
in limited solutionprocessability. This is a critical trade-off between the development of OSCs with simultaneous high carrier mobility and suitable solubility. To address this issue, herein, five-membered ring-fused selenium-bridged V-shaped binaphthalene with decyl substituents (C10-DNS-VW) is developed and synthesized by an efficient method. C10-DNS-VW exhibits significantly high solubility for
A catalytic system consisting of bis(4-methoxyphenyl)selenide and 4-(dimethylamino)pyridine (DMAP) has been developed for the regioselective synthesis of medium-sized bromo/iodo lactones and bromooxepanes possessing high transannular strain. 77Se NMR, mass spectrometry...
Reactions of Butterfly Complex Anions of the Type [(<i>μ</i>-RTe)(<i>μ</i>-CO)Fe<sub>2</sub>(CO)<sub>6</sub>]<sup>-</sup> with Electrophiles. A New Route to <i>μ</i><sub>4</sub>-Se-Containing Double-Butterfly Clusters. Crystal Structures of (<i>μ</i>-<i>p</i>-MeC<sub>6</sub>H<sub>4</sub>Te)(<i>μ</i>-PhCH<sub>2</sub>SCS)Fe<sub>2</sub>(CO)<sub>6</sub> and [(<i>μ</i>-RTe)Fe<sub>2</sub>(CO)<sub>6</sub>]<sub>2</sub>(<i>μ</i><sub>4</sub>-Se) (R = Ph, <i>p</i>-BrC<sub>6</sub>H<sub>4</sub>)
作者:Li-Cheng Song、Qing-Mei Hu、Hong-Tao Fan、Ming-Yi Tang、Zhi-Yong Yang、Guo-Liang Lu
DOI:10.1021/om020132w
日期:2002.6.1
[(μ-RTe)(μ-CO)Fe2(CO)6]- (3) with CS2 and subsequent treatment with organic halides R‘X gave a series of R‘S-containing single-butterfly complexes (μ-RTe)(μ-R‘SCS)Fe2(CO)6 (4a−d, R = Ph, p-MeC6H4; R‘ = Me, PhCH2), whereas 3 reacted with R‘NCS followed by treatment with CF3CO2H or MeI to afford the R‘HN- and R‘MeN-containing single-butterfly complexes (μ-RTe)(μ-R‘HNCS)Fe2(CO)6 and (μ-RTe)(μ-R‘MeNCS)Fe2(CO)6 (5a−d
Convenient methods for the preparation of stable, fused selenazolinium salt systems with a Se–N+ bond have been developed. The mechanism for the formation of the selenazole cycle was investigated in detail by conducting multinuclear NMR experiments. The ability of these compounds to form stable inner salts was demonstrated. We have shown the glutathione peroxidase (GPx) like properties of selenazolopyridinium
已经开发了用于制备稳定的、具有 Se-N+ 键的稠合硒唑啉盐体系的便捷方法。通过进行多核核磁共振实验,详细研究了硒唑循环的形成机制。证明了这些化合物形成稳定内盐的能力。我们已经通过氧化含硫的天然氨基酸以及芳香醛和杂芳香醛,展示了硒唑并吡啶鎓盐的类似谷胱甘肽过氧化物酶 (GPx) 的特性。大多数化合物的分子结构已通过 X 射线衍射研究证实。
Selenophenochromones Selectively Inhibit Human Lung Carcinoma Cells Growth
Synthetic procedures for the preparation of selenophenochromones by treating ethynyl chromones with selenium halides were elaborated. Methyl 3-bromo-2-(1-hydroxycyclohexyl)-9-oxo-9H-selenopheno[2,3-f]chromene-7-carboxylate exhibits high selective in vitro cytotoxic activity againsthuman lung carcinomacells A549 and H69 up to 1.2 μM.
详细阐述了通过用卤化硒处理乙炔色酮来制备硒苯色酮的合成方法。Methyl 3-bromo-2-(1-hydroxycyclohexyl)-9-oxo-9 H - selenopheno[2,3 - f ] chromene -7-carboxylate对人肺癌细胞 A549 和 H69表现出高选择性的体外细胞毒活性1.2 微米。