Discovery of a Novel Class of Highly Potent, Selective, ATP-Competitive, and Orally Bioavailable Inhibitors of the Mammalian Target of Rapamycin (mTOR)
摘要:
A series of novel, highly potent, selective, and ATP-competitive mammalian target of rapamycin (mTOR) inhibitors based on a benzoxazepine scaffold have been identified. Lead optimization resulted in the discovery of inhibitors with low nanomolar activity and greater than 1000-fold selectivity over the closely related PI3K kinases. Compound 28 (XL388) inhibited cellular phosphorylation of mTOR complex 1 (p-p70S6K, pS6, and p-4E-BP1) and mTOR complex 2 (pAKT (S473)) substrates. Furthermore, this compound displayed good pharmacokinetics and oral exposure in multiple species with moderate bioavailability. Oral administration of compound 28 to athymic nude mice implanted with human tumor xenografts afforded significant and dose-dependent antitumor activity.
Metal specific variable binding modes in Schiff base complexes — facile synthesis and crystal structure of anionic bis-N-(2-oxyethyl-5-bromosalicylal-diminato) cobalt(III)
Abstract The Schiff bases N-(2-hydroxyethyl)-X-salicylaldimine (X=H, Br) which show monobasic bidentate binding mode in their copper(II) complexes, in contrast offer dibasic tridentate chelation and almost spontaneous reaction leading to the synthesis of anionic bis-tridentate cobalt(III) chelates. On the other hand the Schiff bases N-(2-hydroxyphenyl)-X-salicylaldimine (X=H, Br) which are in dibasic
Mo(IV) and W(IV) cyanido complexes with Schiff bases. Synthesis, X-ray single crystal structures, physicochemical properties and quantum chemical calculations
In the reaction of salicylaldehyde derivatives and aminoethanol with Mo(IV) or W(IV) cyanido complexes, six new salts were isolated and characterized by physicochemical measurements. The single crystalX-ray analysis of four salts of the formula (PPh4)2[M(CN)3O(LL)]·nH2O, (where LL = Schiff bases formed in situ in the reaction of aminoethanol and 5-bromo-, 5-chloro-, 5-methoxy-, 3,5-dichloro- or 5
在水杨醛衍生物和氨基乙醇与Mo(IV)或W(IV)氰基配合物的反应中,分离出六种新的盐,并通过理化测量进行表征。式(PPh 4)2 [M(CN)3 O(LL)]· n H 2 O的四种盐的单晶X射线分析,(其中LL =在氨基乙醇与氨的反应中原位形成的席夫碱)5-溴,5-氯,5-甲氧基,3,5-二氯或5-溴-3-甲氧基取代的水杨醛,M = Mo或W,n = 1、1.5、2或5个水分子)揭示了畸变的八面体阴离子。所有的络合物都通过元素分析,红外和紫外-可见光谱以及循环伏安法进行了表征。讨论了水杨醛取代基在结构和理化性质上的作用。将结果与量子化学计算进行比较,表明与文献数据相反,即使强氢键也不会影响阴离子结构。
Synthesis, Crystal Structures, and Antibacterial Activity of Cobalt and Copper Complexes With Tridentate Schiff Bases
作者:Juan Du
DOI:10.1080/15533174.2012.680155
日期:2012.11.1
Three mononuclear cobalt and copper complexes, [Co(HL1)2]center dot[Co(L1)2] (1), [Cu(HL2)2] (2), and [CoL2(HL2)]2 (3), where HL1 and HL2 are the monoanionic form of 2-ethoxy-6-[(2-hydroxyethylimino)methyl]phenol (H2L1) and 4-bromo-2-[(2-hydroxyethylimino)methyl]phenol (H2L2), and L1 and L2 are the dianionic form of H2L1 and H2L2, have been synthesized and characterized by elemental analysis, FT-IR spectra, and single-crystal X-ray determination. The Co atoms in (1) and (3) are in octahedral coordination, and the Cu atom in (2) is in square planar coordination. The preliminary antibacterial activity of the complexes on the bacteria S. aureus, E. coli, P. aeruginosa, and S. typhi was evaluated.
De, Rajib Lal; Samanta, Keka; Samanta, Chitra, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1999, vol. 38, # 10, p. 1010 - 1014
作者:De, Rajib Lal、Samanta, Keka、Samanta, Chitra、Mukherjee, Alok K.
DOI:——
日期:——
Chelate compounds of dioxomolybdenum(VI) with salicylidenehydroxyalkylamines. Crystal structure of the solvate (1:1) of dioxo(3,5-dichlorosali-cylidenemonoethanoliminato)molybdenum(VI) with methanol MoO2(C9H7NO2Cl2)�CH3OH
作者:V. S. Sergienko、V. L. Abramenko、M. A. Porai-Koshits、A. D. Garnovskii