已经开发了用于合成N-烷基,N-酰基和N-磺酰基-2-氨基苯并[ d ]噻唑衍生物的新型固相方法。该过程中的关键步骤涉及通过2-碘苯基硫脲树脂3的环化反应制备与聚合物结合的2-氨基苯并[ d ]噻唑树脂5。通过将2-碘苯基异硫氰酸酯2添加到胺封端的连接酰胺树脂1中来生产树脂结合的2-碘苯基硫脲3。这些核心骨架的2-氨基苯并[ d ]噻唑树脂5经历与各种亲电子,如烷基卤,酰基氯,和磺酰氯官能化反应以产生Ñ -烷基,Ñ -酰基,和Ñ磺酰基-2-氨基苯并[ d ]噻唑树脂6,7,和8,分别。最后,Ñ -烷基,Ñ -酰基,和Ñ磺酰基-2-氨基苯并[ d ]噻唑衍生物9,10,和11,然后在良好的产率和纯度通过各树脂的切割产生6,7,和8 在二氯甲烷(DCM)中使用三氟乙酸(TFA)。
a cyanation/cyclization/acylation domino sequence enabling a rapid and efficient synthesis of diversely substituted 2-aminobenzothiazole derivatives. Notably, this reaction proceeds via an original mechanism involving an intermolecular migration of the acylgroup.
Fragment-based design of selective GPCR ligands guided by free energy simulations
作者:Pierre Matricon、Duc Duy Vo、Zhan-Guo Gao、Jan Kihlberg、Kenneth A. Jacobson、Jens Carlsson
DOI:10.1039/d1cc03202j
日期:——
Fragment-based drug discovery relies on successful optimization of weakly binding ligands for affinity and selectivity. Herein, we explored strategies for structure-based evolution of fragments binding to a G protein-coupled receptor. Molecular dynamics simulations combined with rigorous freeenergy calculations guided synthesis of nanomolar ligands with up to >1000-fold improvements of binding affinity
基于片段的药物发现依赖于弱结合配体的亲和力和选择性的成功优化。在此,我们探索了与 G 蛋白偶联受体结合的片段的基于结构的进化策略。分子动力学模拟结合严格的自由能计算指导纳米摩尔配体的合成,结合亲和力提高了 1000 倍以上,亚型选择性接近 40 倍。
Synthesis of sulfur heterocycles <i>via</i> domino metal-mediated reactions
access S-heterocycles and mixed N,S-heterocycles via metal-mediated dominoreactions are described. One involves a cyclocarbopalladation/cross-coupling domino process and leads to benzene-fused five- or six-membered sulfur heterocycles with a stereo defined tetrasubstituted exocyclic double bond. The other consists in a three-component dominoreaction between 2-aminophenyl disulfide, copper cyanide
Compounds, Compositions and Methods of Inhibiting Alpha-Synuclein Toxicity
申请人:Lindquist Susan L.
公开号:US20080261953A1
公开(公告)日:2008-10-23
Compounds and compositions are provided for treatment or amelioration of one or more symptoms of α-synuclein toxicity, α-synuclein mediated diseases or diseases in which α-synuclein fibrils are a symptom or cause of the disease. In one embodiment, the compounds for use in the compositions and methods are heteroaryl acylguanidines, heteroarylhydrazones, dihy-dropyridones, heteroaryl and aryl styryl ketones, and heteroarylpyrazoles.
Compounds, compositions and methods of inhibiting a-synuclein toxicity
申请人:The Whitehead Institute for Biomedical Research
公开号:EP2433634A2
公开(公告)日:2012-03-28
Compounds and compositions are provided for treatment or amelioration of one or more symptoms of a-synuclein toxicity, a-synuclein mediated diseases or diseases in which a-synuclein fibrils are a symptom or cause of the disease. In one embodiment, the compounds for use in the compositions and methods are heteroaryl acylguanidines, heteroarylhydrazones, dihydropyridones, heteroaryl and aryl styryl ketones, and heteroarylpyrazoles.