在分子设计肝X受体(LXR)β-选择性激动剂的尝试中,我们发现2-氧代色烯部分(头部)和咪唑啉-2,4-二酮部分(尾巴)的组合在表达能力和对LXRβ的选择性。我们合成了一系列2-oxochromene衍生物,并确定了43种LXRβ选择性激动剂,可在不显着升高TG水平的情况下增加HDL-C水平,并导致高脂饮食中主动脉弓内脂质蓄积面积减少。和胆固醇喂养的Bio F 1 B仓鼠。在这份手稿中,我们报告了这些2-氧代苯并二氢吡喃衍生物的设计,合成和药理作用。
在分子设计肝X受体(LXR)β-选择性激动剂的尝试中,我们发现2-氧代色烯部分(头部)和咪唑啉-2,4-二酮部分(尾巴)的组合在表达能力和对LXRβ的选择性。我们合成了一系列2-oxochromene衍生物,并确定了43种LXRβ选择性激动剂,可在不显着升高TG水平的情况下增加HDL-C水平,并导致高脂饮食中主动脉弓内脂质蓄积面积减少。和胆固醇喂养的Bio F 1 B仓鼠。在这份手稿中,我们报告了这些2-氧代苯并二氢吡喃衍生物的设计,合成和药理作用。
Palladium-Catalyzed, Triethylborane-Promoted C-Allylation of Naphthols and Benzene Polyols by Direct Use of Allyl Alcohols
作者:Yoshinao Tamaru、Masanari Kimura、Miki Fukasaka
DOI:10.1055/s-2006-950220
日期:2006.11
The combination of a catalytic amount of Pd(0) species and triethylborane promotes the C-allylation of benzene polyols and naphthols at room temperature to 50 °C by the direct use of a variety of allylic alcohols; Exhaustive allylation of 1,3-benzenediol and 1,3,5-benzenetriol provides penta-allylation and hexa-allylation products, respectively, in good yields.
Novel synthesis of medium-sized oxa-heterocycles by palladium-catalyzed intramolecular Heck reaction
作者:K.C. Majumdar、B. Chattopadhyay、K. Ray
DOI:10.1016/j.tetlet.2007.08.121
日期:2007.10
An efficient and high yielding method for the synthesis of eight-membered heterocyclic skeletons has been developed via palladium-catalyzedintramolecular Heck reaction.
通过钯催化的分子内Heck反应,已经开发出一种高效且高产的八元杂环骨架合成方法。
Effect of <i>ortho</i>-SR Groups on O−H Bond Strength and H-Atom Donating Ability of Phenols: A Possible Role for the Tyr-Cys Link in Galactose Oxidase Active Site?
dissociation enthalpy (BDE) and the reactivity of the OH group. Newly synthesized sulfur containing heterocycles 3 and 4, where the -SR group is almost coplanar with the phenolic ring, are characterized by unusuallylow BDE(O-H) values (79.6 and 79.2 kcal/mol, respectively) and by much higher reactivitiestoward peroxyl radicals than the ortho-methylthio derivative 1 (82.0 kcal/mol). The importance of
Synthesis of bis-fused benzofuran derivatives by the implementation of palladium-mediated intramolecular cyclization is described. To our knowledge, this is the first report of the synthesis of bis-fused benzofuran by this protocol. Bisbenzoxepine and bisbenzoxocine derivatives were also synthesized by the application of two-directional ring-closing metathesis. palladium catalyst - Grubbs catalyst
Aryloxyacetic acids for diabetes and lipid disorders
申请人:——
公开号:US20020173663A1
公开(公告)日:2002-11-21
A class of aryloxyacetic acids comprises compounds that are potent agonists of PPAR alpha and/or gamma, and are therefore useful in the treatment, control or prevention of non-insulin dependent diabetes mellitus (NIDDM), hyperglycemia, dyslipidemia, hyperlipidemia, hypercholesterolemia, hypertriglyceridemia, atherosclerosis, obesity, vascular restenosis, inflammation, and other PPAR alpha and/or gamma mediated diseases, disorders and conditions.