Synthetic [5,5] trans-fused indane lactones as inhibitors of thrombin
摘要:
Synthesis of trans-fused lactones containing; the indane nucleus has resulted in a series of potent acylating inhibitors of thrombin. As an er;ample compound Ile has an apparent second order rate constant of 11x10(6) M(-1)sec(-1) for the inhibition of thrombin. The anticoagulant activity of these compounds is discussed. (C) 1999 Elsevier Science Ltd. All rights reserved.
6-Aryl-8H-indeno[1,2-d]thiazol-2-ylamines: A1 Adenosine Receptor Agonist Allosteric Enhancers Having Improved Potency
摘要:
Allosteric enhancers (AEs) of the A(1) adenosine receptor (A(1)AR) have potential as drugs for treating neurological, cardiovascular, and renal diseases. This report describes the synthesis and evaluation of a series of 6-aryl-8H-indeno[1,2-d]thiazol-2-ylamines that exhibited AE activity at the A(1)AR. Palladium-mediated condensation of arylboronic acids with 5-bromoindan-1-one generated arylindanones 2a-aj for iodine-catalyzed condensation with thiourea, generating 2-aminothiazolium salts 3a-aj. Binding studies using membranes from cells stably expressing human A(1)ARs, A(2A)ARs, or A(3)ARs evaluated AE activity and receptor subtype selectivity. The EC50 of the AE activities of compounds 3m-o, 3x, and 3ae were 2.2, 1.5, 0.9, 1.0, and 3.0,mu M, respectively, substantially lower than that of the well characterized 2-amino3-aroylthiophene (PD 81,723), > 10 mu M. The new compounds also have substantially higher maximal AE activity. These compounds had no AE activity at the A(2A)AR and only minimal activity at the A(3)AR.
One-step highly selective borylation/Suzuki cross-coupling of two distinct aryl bromides in pure water
作者:Shan Dong Xu、Fang Zhou Sun、Wei Hang Deng、Han Hao、Xin Hong Duan
DOI:10.1039/c8nj02184h
日期:——
A Na2PdCl4-catalysed B2(OH)4-mediated directcross-coupling of twodistinctarylbromides in pure water is described. This one-step borylation/Suzuki method exhibits an outstanding cross-couplingselectivity and no tendency to produce homocoupling products, therefore leading to biaryls and heterobiaryls in moderate to good yields. Moreover, the reaction has high regio-selectivity and can be scaled-up
2-Aminothiazole allosteric enhancers of a ?1? adenosine receptors
申请人:Linden Joel
公开号:US20050027125A1
公开(公告)日:2005-02-03
The present invention relates generally to a class of 2-aminothiazole derivatives which have recently been identified as allosteric enhancers of the A
1? adenosine receptor. These compounds, and therapeutic compositions containing them, are useful for treating conditions in which activation of the A
1? adenosine receptor would be beneficial, for example, those conditions in which stimulation of angiogenesis would improve blood flow to ischemic tissues.
本发明总体上涉及一类 2-氨基噻唑衍生物,这些衍生物最近被鉴定为 A
1?这些化合物以及含有它们的治疗组合物可用于治疗激活 A 1?
1? 腺苷受体将是有益的,例如,刺激血管生成将改善缺血组织的血流量。
EP1583530A4
申请人:——
公开号:EP1583530A4
公开(公告)日:2008-07-23
2-AMINOTHIAZOLE ALLOSTERIC ENHANCERS OF A1-ADENOSINE RECEPTORS