如果 η 1 -碳通过“半稳定的”钯-碳 η 1 -吡咯连接被 N 原子取代,则η 1 -芳族碳环连接的 Pd( II ) 配合物的流动性得以保留。在此,我们报告并表征了一种四配位的中性氯吡咯-Pd( II )-π-烯丙基配合物,其在室温下表现出动态行为。AgSbF 6提取氯后,形成阳离子钯配合物,其中金属的配位球通过吡咯环的一个 C C 双键的配位完成。这种阳离子 η 2 -吡咯连接的 Pd( II)-π-烯丙基配合物的晶体学特征。这些同构复合物中吡咯的配位模式随着碳配体(σ 或 π)的变化而微妙地变化。
A P,N-Ligand for Palladium-Catalyzed Ammonia Arylation: Coupling of Deactivated Aryl Chlorides, Chemoselective Arylations, and Room Temperature Reactions
作者:Rylan J. Lundgren、Brendan D. Peters、Pamela G. Alsabeh、Mark Stradiotto
DOI:10.1002/anie.201000526
日期:2010.6.1
Amazing ammonia: A new air‐stable P,N‐ligand (Mor‐DalPhos) is reported that enables the palladium‐catalyzed cross‐coupling of ammonia to a variety of aryl chloride and aryl tosylate substrates with high chemoselectivity and, for the first time, at room temperature (see scheme; Ad=adamantyl, Ts=para‐toluenesulfonyl).
惊人的氨气:据报道,一种新型的空气稳定的P,N-配体(Mor-DalPhos)使钯催化的氨气与多种具有高化学选择性的芳基氯和甲苯磺酸芳基酯的交叉偶联成为首次。 ,在室温下(参见方案; Ad =金刚烷基,Ts =对甲苯磺酰基)。
[EN] PYRROLOPYRIMIDINE ALKYNYL COMPOUNDS AND METHODS OF MAKING AND USING SAME<br/>[FR] COMPOSÉS D'ALCYNYLE DE PYRROLOPYRIMIDINE ET LEURS PROCÉDÉS DE PRÉPARATION ET D'UTILISATION
申请人:TARGEGEN INC
公开号:WO2009055674A1
公开(公告)日:2009-04-30
Provided herein are pyrrolopyrimide alkynyl compounds, and methods of making and using the same. Such compounds may be used in inflammatory or myeloproliferative disorders. The disclosure also provides for treating cancer.
pyrrole-thiazolidinone hybrids was designed, synthesized and evaluated for activities against ESKAP bacteria panel and mycobacterial pathogens. From the series, compound 9d showed prominent activity againstS. aureus (MIC = 0.5 μg/mL) and compound 9k showed the most promising activity againstM. tuberculosis H37Rv (MIC = 0.5 μg/mL). Potent derivatives were found to be non-toxic when tested against Vero cells.
设计、合成了一系列吡咯-噻唑烷酮杂化物,并评估其针对 ESKAP 细菌组和分枝杆菌病原体的活性。在该系列中,化合物9d显示出显着的抗金黄色葡萄球菌活性。金黄色葡萄球菌(MIC = 0.5 μg/mL) 和化合物9k显示出最有希望的抗金黄色葡萄球菌活性。结核病H37Rv(MIC = 0.5 μg/mL)。当针对 Vero 细胞进行测试时,发现有效的衍生物是无毒的。化合物9d在针对几种MRSA和VRSA菌株的体外评估中产生了与标准药物相当或更好的活性。在抗生物膜测定中, 9d减少了S。在 10 倍 MIC 时,金黄色葡萄球菌生物膜增加 >11%。吡咯-噻唑烷酮杂化物表现出的双重抑制作用证实了它们作为新型有前途的抗感染剂的潜力。
Discovery, synthesis and SAR analysis of novel selective small molecule S1P4-R agonists based on a (2Z,5Z)-5-((pyrrol-3-yl)methylene)-3-alkyl-2-(alkylimino)thiazolidin-4-one chemotype
High affinity and selective S1P(4) receptor (S1P(4)-R) small molecule agonists may be important proof-of-principle tools used to clarify the receptor biological function and effects to assess the therapeutic potential of the S1P4-R in diverse disease areas including treatment of viral infections and thrombocytopenia. A high-throughput screening campaign of the Molecular Libraries-Small Molecule Repository was carried out by our laboratories and identified (2Z,5Z)-5-((1-(2-fluorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl)methylene)-3-methyl-2-(methylimino) thiazolidin-4-one as a promising S1P(4)-R agonist hit distinct from literature S1P(4)-R modulators. Rational chemical modifications of the hit allowed the identification of a promising lead molecule with low nanomolar S1P(4)-R agonist activity and exquisite selectivity over the other S1P(1-3,5)-Rs family members. The lead molecule herein disclosed constitutes a valuable pharmacological tool to explore the effects of the S1P(4)-R signaling cascade and elucidate the molecular basis of the receptor function. (C) 2011 Elsevier Ltd. All rights reserved.
Design and development of pyrrole carbaldehyde: an effective pharmacophore for enoyl-ACP reductase
作者:Shrinivas D. Joshi、Devendra Kumar、Uttam A. More、Kap Seung Yang、Tejraj M. Aminabhavi
DOI:10.1007/s00044-016-1517-y
日期:2016.4
Enoyl-ACP reductase is the key enzyme involved in FAS-II synthesis of mycolic acid in bacterial cell wall and is a promising target for discovering new chemical entity. The designed pharmacophores are the possible better tools to combat mutation in enoyl-ACP enzyme, which leads to a decrease in volume of triclosan binding site. Compound 3a showed H-bonding interactions similar to that of triclosan with enoyl-ACP enzyme and with a better docking score (C score 8.81), while the compound 3f showed additional interaction with MET98.H amino acid residue. The 3D-QSAR computations also support the docking study to develop novel pyrrole-based derivatives.Molecular docking 3D-QSAR studies and synthesis of active analogs of pyrrole carbaldehyde as better receptor fit pharmacophore for enoyl-ACP reductase along with in vitro antitubercular activity.