55-51-6Relevant academic research and scientific papers
The synthesis of a di-N-heterocyclic carbene-amido complex of palladium(II)
Douthwaite, Richard E.,Houghton, Jennifer,Kariuki, Benson M.
, p. 698 - 699 (2004)
A diimidazolium salt incorporating a secondary amine moiety has been used to prepare a palladium(II) di-N-heterocyclic carbene amino complex that can be deprotonated with NaH to give the first example of a transition metal NHC-amide.
SUBSTITUTED OXAZOLIDINONES FOR THE TREATMENT OF MAMMALIAN INFECTIONS
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Page/Page column 13, (2020/02/16)
Present invention relates to novel compound of formula (I), their enantiomers, their diastereomers, their pharmaceutically accepted salts, or pro-drugs thereof, which are useful for the treatment of bacterial infection.
QUINOLINE AND QUINAZOLINE COMPOUNDS AND METHODS OF USE THEREOF
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Paragraph 00679-00680, (2020/10/09)
Compounds and methods for their preparation and use as therapeutic or prophylactic agents, fo example for treatment of cancer, bacterial or viral diseases by targeting Ectonucleotide Pyrophosphatase/Phosphodiesterase- 1 (ENPP1).
Novel heterocyclic derivative capable of being used as SHP2 inhibitor
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Paragraph 0415; 0417-0418, (2019/08/30)
The invention relates to a novel heterocyclic derivative capable of being used as an SHP2 inhibitor, specifically relates to a compound shown by a formula I or pharmaceutically acceptable salts thereof, further relates to a use of the compound shown by the formula I or the pharmaceutically acceptable salts thereof and a pharmaceutical composition thereof in drug preparation, and particularly relates to a use in preparation of drugs for treatment, inhibition or prevention of diseases or discomforts mediated by SHP2 activity.
Design and Synthesis of Orally Bioavailable Piperazine Substituted 4(1H)-Quinolones with Potent Antimalarial Activity: Structure-Activity and Structure-Property Relationship Studies
Neelarapu, Raghupathi,Maignan, Jordany R.,Lichorowic, Cynthia L.,Monastyrskyi, Andrii,Mutka, Tina S.,LaCrue, Alexis N.,Blake, Lynn D.,Casandra, Debora,Mashkouri, Sherwin,Burrows, Jeremy N.,Willis, Paul A.,Kyle, Dennis E.,Manetsch, Roman
, p. 1450 - 1473 (2018/03/05)
Malaria deaths have been decreasing over the last 10-15 years, with global mortality rates having fallen by 47% since 2000. While the World Health Organization (WHO) recommends the use of artemisinin-based combination therapies (ACTs) to combat malaria, the emergence of artemisinin resistant strains underscores the need to develop new antimalarial drugs. Recent in vivo efficacy improvements of the historical antimalarial ICI 56,780 have been reported, however, with the poor solubility and rapid development of resistance, this compound requires further optimization. A series of piperazine-containing 4(1H)-quinolones with greatly enhanced solubility were developed utilizing structure-activity relationship (SAR) and structure-property relationship (SPR) studies. Furthermore, promising compounds were chosen for an in vivo scouting assay to narrow selection for testing in an in vivo Thompson test. Finally, two piperazine-containing 4(1H)-quinolones were curative in the conventional Thompson test and also displayed in vivo activity against the liver stages of the parasite.
NOVEL HETEROCYCLIC DERIVATIVES USEFUL AS SHP2 INHIBITORS
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Page/Page column 84; 85, (2018/10/19)
This invention relates to certain novel pyrazine derivatives (Formula I) as SHP2 inhibitors which is shown as formula I, their synthesis and their use for treating a SHP2 mediated disorder. More particularly, this invention is directed to fused heterocyclic group derivatives useful as inhibitors of SHP2, methods for producing such compounds and methods for treating a SHP2-mediated disorder.
SPIRO-ISOQUINOLINE-4,4'-PIPERIDINE COMPOUNDS HAVING MULTIMODAL ACTIVITY AGAINST PAIN
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Page/Page column 155, (2016/11/21)
The present invention relates to compounds having dual pharmacological activity towards both the sigma (σ) receptor, and the μ-opiod receptor and more particularly to spiro-isoquinoline-4,4'-piperidine compounds having this pharmacological activity, to processes of preparation of such compounds, to pharmaceutical compositions comprising them, and to their use in therapy, in particular for the treatment of pain.
DERIVATIVES OF 6-(2,3-DICHLOROPHENYL)-1,2,4-TRIAZIN-5- AMINE
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, (2015/07/07)
The instant disclosure relates to (among other things) compounds that are derivatives of 6-(2,3-dichlorophenyl)-1,2,4-triazin-5-amine. The compounds provided possess unique effects and differences over other phenyltriazines known in the art.
Ring-closing metathesis reaction-based synthesis of new classes of polyether macrocyclic systems
Naveen,Babu, Srinivasarao Arulananda
, p. 7758 - 7781 (2015/09/08)
Ring closing metathesis (RCM) reactions of suitable substrates having terminal olefins, which are assembled from various linkers and hydroxy benzaldehydes and syntheses of a wide range of 16-30 membered, new crown ether-type polyether, aza-polyether, bis aza-polyether macrocycles and dilactone moiety embedded polyether macrocycles (macrolides) are reported. After the ring-closure reaction, installation of different functional groups and functional group modification on the periphery of the synthesized polyether/crown ether macrocycles obtained in the RCM reactions are accomplished using the epoxidation, oxidation and catalytic hydrogenation-based synthetic transformations. Along this line, the syntheses of a variety of polyether macrocycles possessing epoxide or α-hydroxy ketone or 1,2-diol functionalities at the periphery have been shown. Furthermore, the synthesized α-hydroxy ketone functionality installed polyether macrocycles were subjected to the allylation and Reformatsky type reactions to obtain homoallyl alcohol moiety-based and lactone ring-appended polyether macrocycles.
Whole cell screen based identification of spiropiperidines with potent antitubercular properties
Tantry, Subramanyam J.,Degiacomi, Giulia,Sharma, Sreevalli,Jena, Lalit Kumar,Narayan, Ashwini,Guptha, Supreeth,Shanbhag, Gajanan,Menasinakai, Sreenivasaiah,Mallya, Meenakshi,Awasthy, Disha,Balakrishnan, Gayathri,Kaur, Parvinder,Bhattacharjee, Deepa,Narayan, Chandan,Reddy, Jitendar,Naveen Kumar,Shandil, Radha,Boldrin, Francesca,Ventura, Marcello,Manganelli, Riccardo,Hartkoorn, Ruben C.,Cole, Stewart T.,Panda, Manoranjan,Markad, Shankar D.,Ramachandran, Vasanthi,Ghorpade, Sandeep R.,Dinesh, Neela
, p. 3234 - 3245 (2015/07/08)
Abstract Whole cell based screens to identify hits against Mycobacterium tuberculosis (Mtb), carried out under replicating and non-replicating (NRP) conditions, resulted in the identification of multiple, novel but structurally related spiropiperidines with potent antitubercular properties. These compounds could be further classified into three classes namely 3-(3-aryl-1,2,4-oxadiazol-5-yl)-1′-alkylspiro[indene-1,4′-piperidine] (abbr. spiroindenes), 4-(3-aryl-1,2,4-oxadiazol-5-yl)-1′-alkylspiro[chromene-2,4′-piperidine] (abbr. spirochromenes) and 1′-benzylspiro[indole-1,4′-piperidin]-2(1H)-one (abbr. spiroindolones). Spiroindenes showed ≥4 log10 kill (at 2-12 μM) on replicating Mtb, but were moderately active under non replicating conditions. Whole genome sequencing efforts of spiroindene resistant mutants resulted in the identification of I292L mutation in MmpL3 (Mycobacterial membrane protein Large), required for the assembly of mycolic acid into the cell wall core of Mtb. MIC modulation studies demonstrated that the mutants were cross-resistant to spirochromenes but not to spiroindolones. This Letter describes lead identification efforts to improve potency while reducing the lipophilicity and hERG liabilities of spiroindenes. Additionally, as deduced from the SAR studies, we provide insights regarding the new chemical opportunities that the spiroindolones can offer to the TB drug discovery initiatives.
