Synthesis of Imidazo[1,2-a]pyridines by the Bis(acetyloxy)(phenyl)-λ³-iodane-Mediated Oxidative Coupling of 2-Aminopyridines with β-Keto Esters and 1,3-Diones
作者:Wei Yu、Xianpei Wang、Lijuan Ma
DOI:10.1055/s-0030-1260106
日期:2011.8
2-aminopyridines and β-keto esters by using bis(acetyloxy)(phenyl)-λ³-iodane as an oxidant and borontrifluoride etherate as a catalyst. The amount of catalyst plays a key role in determining the course of the reaction. Whereas the use of 0.2 equivalents of catalyst ensures the generation of imidazo[1,2-a]pyridines, raising the amount of catalyst to 1.0 equivalents results in exclusive α-acetoxylation of
咪唑并[1,2一]吡啶-3-羧酸盐,可直接由2-氨基吡啶和β酮酯通过使用双(乙酰基氧基)制备(苯基)-λ ³ -iodane作为氧化剂和三氟化硼醚作为催化剂。催化剂的量在确定反应过程中起关键作用。尽管使用0.2当量的催化剂可确保生成咪唑并[1,2- a ]吡啶,但将催化剂的量提高至1.0当量可导致β-酮酯的独家α-乙酰氧基化。2-氨基吡啶也可以与1,3-二酮反应,得到3-酰基咪唑并[1,2- a ]吡啶。 杂环-多环-环化-氧化-偶联
SPIRO-CYCLIC COMPOUND
申请人:Takeda Pharmaceutical Company Limited
公开号:EP1911753A1
公开(公告)日:2008-04-16
The present invention provides a compound represented by the formula (I):
wherein
E is an optionally substituted cyclic group;
D is a carbonyl group or a sulfonyl group;
A is CH or N;
ring P is an optionally further substituted 5- to 7-membered ring;
ring Q is an optionally further substituted 5- to 7-membered nonaromatic ring; and
ring R is an optionally further substituted and optionally condensed 5- to 7-membered nonaromatic ring,
or a salt thereof. The compound of the present invention has an ACC inhibitory activity, is useful for the prophylaxis or treatment of obesity, diabetes, hypertension, hyperlipidemia, cardiac failure, diabetic complications, metabolic syndrome, sarcopenia and the like, and has superior properties in the efficacy, duration of activity, specificity, low toxicity and the like.
[EN] SMAD3 INHIBITORS<br/>[FR] INHIBITEURS DE SMAD3
申请人:MOEXA PHARMACEUTICALS LTD
公开号:WO2020029980A1
公开(公告)日:2020-02-13
Smad3 inhibitor compounds, specifically a compound of Formula 1 or Formula 2, or a pharmaceutically acceptable salt thereof, and its use in treating or preventing cell proliferation or cancer in a subject are provided.
Imidazo[1,2-a]Pyridine Derivatives for Treatment Of Herpes Viral Infections
申请人:Gudmundsson S. Kristjan
公开号:US20070135451A1
公开(公告)日:2007-06-14
The present invention provides compounds of formula (I):
wherein all variables are as defined herein pharmaceutical compositions containing the same, processes for preparing the same and their use as pharmaceutical agents.
Imidazo-Pyridine Derivatives For Use In The Treatment of Herpes Viral Infection
申请人:Gudmundsson Kristjan
公开号:US20080139594A1
公开(公告)日:2008-06-12
The present invention provides compounds of formula (I):
wherein all variables are as defined herein, pharmaceutical compositions containing the same, processes for preparing the same and their use as pharmaceutical agents.