Synthesis of 8Н-pyrazolo[5',1':3,4]pyrazino[2,1-b]quinazolin-8-ones
摘要:
4-Chloropyrazolo[1,5-D degrees]pyrazines reacted with anthranilic acids forming 8De-pyrazolo[5',1':3,4]pyrazino[2,1-b]quinazolin-8-ones representing a new heterocyclic system.
Fused Triazole Derivatives as Dipeptidyl Peptidase-IV Inhibitors for the Treatment or Prevention of Diabetes
申请人:Weber E. Ann
公开号:US20070208010A1
公开(公告)日:2007-09-06
The present invention is directed to novel fused triazole derivatives which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DPP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
Fused triazole derivatives as dipeptidyl peptidase-IV inhibitors for the treatment or prevention of diabetes
申请人:Merck & Co., Inc.
公开号:US07625888B2
公开(公告)日:2009-12-01
The present invention is directed to novel fused triazole derivatives which are inhibitors of the dipeptidyl peptidase-IV enzyme (“DPP-IV inhibitors”) and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
Herein, a strategy of synergetic dual-metal-ion centers to boost transition-metal-based metal organic framework (MOF) alloy nanomaterials as active oxygenreduction reaction (ORR) electrocatalysts for efficient hydrogen peroxide (H2O2) generation is proposed. Through a facile one-pot wet chemical method, a series of MOF alloys with unique Ni–M (M–Co, Cu, Zn) synergetic centers are synthesized, where
在此,本文提出了一种协同双金属离子中心促进过渡金属基金属有机骨架 (MOF) 合金纳米材料作为活性氧还原反应 (ORR) 电催化剂高效生成过氧化氢 (H 2 O 2 ) 的策略。通过简便的一锅湿化学法,合成了一系列具有独特Ni-M(M-Co、Cu、Zn)协同中心的MOF合金,其中强金属离子3d-3d协同作用可以有效抑制O 2裂解Ni 位点朝向有利的双电子 ORR 途径。令人印象深刻的是,精心设计的 NiZn MOF 合金催化剂表现出优异的 H 2 O 2在 ORR 期间选择性高达 90%,明显优于 NiCo MOF (45%) 和 NiCu MOF (55%)。此外,它在连续的长期 ORR 操作下保持有效的活动和稳健的稳定性。相关的原位同步辐射X射线吸附精细结构和傅里叶变换红外光谱分析在原子水平上表明,通过相邻Zn 2+离子调节的较高Ni氧化态物种有利于优化关键的吸附能量* OOH 是快速二电子
[EN] FUSED TRIAZOLE DERIVATIVES AS DIPEPTIDYL PEPTIDASE-IV INHIBITORS FOR THE TREATMENT OR PREVENTION OF DIABETES<br/>[FR] DERIVES DE TRIAZOLE ACCOLES INHIBITEURS DE LA DIPEPTIDYL PEPTIDASE-IV UTILISES DANS LE TRAITEMENT OU LA PREVENTION DU DIABETE
申请人:MERCK & CO INC
公开号:WO2006023750A3
公开(公告)日:2006-07-27
FUSED TRIAZOLE DERIVATIVES AS DIPEPTIDYL PEPTIDASE-IV INHIBITORS FOR THE TREATMENT OR PREVENTION OF DIABETES