106515-76-8Relevant academic research and scientific papers
Identification of small molecules blocking the pseudomonas aeruginosa type iii secretion system protein pcrv
Sundin, Charlotta,Saleeb, Michael,Spjut, Sara,Qin, Liena,Elofsson, Mikael
, p. 1 - 17 (2021/01/13)
Pseudomonas aeruginosa is an opportunistic bacterial pathogen that employs its type III secretion system (T3SS) during the acute phase of infection to translocate cytotoxins into the host cell cytoplasm to evade the immune system. The PcrV protein is located at the tip of the T3SS, facilitates the integration of pore-forming proteins into the eukaryotic cell membrane, and is required for translocation of cytotoxins into the host cell. In this study, we used surface plasmon resonance screening to identify small molecule binders of PcrV. A follow-up structure-activity relationship analysis resulted in PcrV binders that protect macrophages in a P. aeruginosa cell-based infection assay. Treatment of P. aeruginosa infections is challenging due to acquired, intrinsic, and adaptive resistance in addition to a broad arsenal of virulence systems such as the T3SS. Virulence blocking molecules targeting PcrV constitute valuable starting points for development of next generation antibacterials to treat infections caused by P. aeruginosa.
Umpolung Strategy for Arene C?H Etherification Leading to Functionalized Chromanes Enabled by I(III) N-Ligated Hypervalent Iodine Reagents
Mikhael, Myriam,Guo, Wentao,Tantillo, Dean J.,Wengryniuk, Sarah E.
, p. 4867 - 4875 (2021/09/14)
The direct formation of aryl C?O bonds via the intramolecular dehydrogenative coupling of a C?H bond and a pendant alcohol represents a powerful synthetic transformation. Herein, we report a method for intramolecular arene C?H etherification via an umpoled alcohol cyclization mediated by an I(III) N-HVI reagent. This approach provides access to functionalized chromane scaffolds from primary, secondary and tertiary alcohols via a cascade cyclization-iodonium salt formation, the latter providing a versatile functional handle for downstream derivatization. Computational studies support initial formation of an umpoled O-intermediate via I(III) ligand exchange, followed by competitive direct and spirocyclization/1,2-shift pathways. (Figure presented.).
γ-Lactone Synthesis via Palladium(II)-Catalyzed Lactonization of Unactivated Methylene C(sp3)-H Bonds
Liu, Bin,Shi, Bing-Feng
, p. 2396 - 2400 (2016/09/28)
A palladium(II)-catalyzed intramolecular lactonization of unactivated methylene C(sp3)-H bonds using PIP bidentate auxiliary is described. This method provides an efficient and concise pathway to synthesize functionalized γ-lactones.
Synthesis and antifungal activity of 7-methyl-7-hydroxy-2,3-benzo[c]octa-1, 6-olide
Zhao, Jin,Dong, Hong-Bo,Yang, Ming-Yan,Du, Juan,Jiang, Jia-Zheng,Wang, Ming-An
, p. 312 - 317 (2014/02/14)
The racemic 7-methyl-7-hydroxy-2,3-benzo[c]octa-1,6-olide, the analog of natural product (6R)-3,7-dimethyl-7-hydroxy-2-octen-1,6-olide, was totally synthesized using easily available (E)-2-(2-carboxyvinyl)benzoic acid as a raw material in nine-step reacti
Assessment of dopamine D1 receptor affinity and efficacy of three tetracyclic conformationally-restricted analogs of SKF38393
Clark, Alia H.,McCorvy, John D.,Watts, Val J.,Nichols, David E.
, p. 5420 - 5431 (2011/10/30)
To assess the effect of conformational mobility on receptor activity, the β-phenyl substituent of dopamine D1 agonist ligands of the phenylbenzazepine class, (±)-6,6a,7,8,9,13b-hexahydro-5H-benzo[d] naphtho[2,1-b]azepine-11,12-diol (8), and its oxygen and sulfur bioisosteres 9 and 10, respectively, were synthesized as conformationally-restricted analogs of SKF38393, a dopamine D1-selective partial agonist. Compounds trans-8b, 9, and 10 showed binding affinity comparable to that of SKF38393, but functionally, they displayed only very weak agonist activity. These results suggest that the conformationally-restricted structure of the analogs cannot adopt a binding orientation that is necessary for agonist activity.
Functionalized esters as bis-electrophiles in a silicon-induced domino synthesis of annulated carbocycles
Genrich, Florian,Harms, Guido,Schaumann, Ernst,Gjikaj, Mimoza,Adiwidjaja, Gunadi
experimental part, p. 5577 - 5587 (2009/12/03)
The reaction of silyl-substituted carbanion 1b with arene-1,2-dicarboxylates 6, 15 yields indenone derivatives 11, 16 in a domino process involving silyl C→O migration and elimination. However, in a competing pathway, the initial addition of 1b leads to l
5-Substituted isoquinoline derivatives
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Page 109, (2010/02/10)
A compound represented by the following formula (1) or a salt thereof: wherein R1 represents hydrogen atom, a halogen atom and the like; R2 represents hydrogen atom, a halogen atom, a C1-6 alkyl group and the like; and R3 represents —O—X—C(A1)(A11)—C(A2)(A2l)—N(A3l)(A3)(X represents propylene group etc., A11 and A21 represent hydrogen atom, or a C1-6 alkyl group, A31 represents a C1-6 alkyl group substituted with hydroxyl group, or hydrogen atom, and A1, A2, and A3 represent hydrogen atom, a C1-6 alkyl group and the like) and the like, which has an inhibitory activity on the phosphorylation of myosin regulatory light chain, and is useful for treatment of diseases relating to contraction of various cells and the like.
SUBSTITUTED HYDROXYETHYLAMINE ASPARTYL PROTEASE INHIBITORS
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Page/Page column 242-243, (2008/06/13)
The invention relates to novel compounds and also to methods of treating at least one disease, disorder, or condition associated with amyloidosis using such compounds. Amyloidosis refers to a collection of diseases, disorders, and conditions associated with abnormal deposition of A-beta protein.
AMP deaminase inhibitors. 3. SAR of 3-(carboxyarylalkyl)coformycin aglycon analogues
Kasibhatla, Srinivas Rao,Bookser, Brett C.,Probst, Gary,Appleman, James R.,Erion, Mark D.
, p. 1508 - 1518 (2007/10/03)
N3-Substituted coformycin aglycon analogues with improved AMP deaminase (AMPDA) inhibitory potency are described. Replacement of the 5-carboxypentyl substituent in the lead AMPDA inhibitor 3-(5-carboxypentyl)-3,6,7,8- tetrahydroimidazo[4,5-d][1,3]diazepin-8-ol (2) described in the previous article with various carboxyarylalkyl groups resulted in compounds with 10- 100-fold improved AMPDA inhibitory potencies. The optimal N3 substituent had m-carboxyphenyl with a two-carbon alkyl tether. For example, 3-[2-(3-carboxy- 5-ethylphenyl)ethyl]-3,6,7,8-tetrahydroimidazo[4,5-d][1,3]diazepin-8-ol (43g) inhibited human AMPDA with a K(i) = 0.06 μM. The compounds within the series also exhibited > 1000-fold specificity for AMPDA relative to adenosine deaminase.
Synthesis and biological activity of new 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) synthase inhibitors: 2-oxetanones with a side chain mimicking the folded structure of 1233A.
Hashizume,Ito,Yamada,Nagashima,Kanao,Tomoda,Sunazuka,Kumagai,Omura
, p. 512 - 520 (2007/10/02)
To mimic the folded side chain conformation of 1233A (1), which is a 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) synthase inhibitor, 1233A analogs with aromatic rings in the side chain were synthesized. The 2-oxetanone moiety was kept intact. Among 1233A and its synthetic analogs, trans-3-hydroxymethyl-4-[2-(7-methoxycarbonyl-1-naphthyl)ethyl]-2-oxe tanone (23) showed the highest HMG-CoA synthase inhibitory activity in vitro. The structure-activity relationship at the side chain is discussed.
