- POLYHETEROCYCLIC COMPOUNDS AS METTL3 INHIBITORS
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The present invention relates to compounds of formula (I) that function as inhibitors of METTL3 (N6-adenosine-methyltransferase 70 kDa subunit) enzyme activity: X-Y-Z (I) wherein X, Y and Z are each as defined herein. The present invention also relates to processes for the preparation of these compounds, to pharmaceutical compositions comprising them, and to their use in the treatment of proliferative disorders, such as cancer, and autoimmune diseases, as well as other diseases or conditions in which METTL3 activity is implicated.
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Page/Page column 338
(2021/06/11)
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- Hit-to-lead optimization of a latency-associated nuclear antigen inhibitor against Kaposi's sarcoma-associated herpesvirus infections
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The Latency-associated nuclear antigen (LANA) plays a central role for the latent persistence of the Kaposi's Sarcoma Herpesvirus (KSHV) in the human host and helps to establish lifelong infections. Herein, we report our efforts towards hit-to-lead generation starting from a previously discovered LANA-DNA inhibitor. By tethering the viral genome to the host nucleosomes, LANA ensures the segregation and persistence of the viral DNA during mitosis. LANA is also required for the replication of the latent viral episome during the S phase of the cell cycle. We aim to inhibit the interaction between LANA and the viral genome to prevent the latent persistence of KSHV in the host organism. Medicinal chemistry-driven optimization studies and structure-activity-relationship investigation led to the discovery of an improved LANA inhibitor. The functional activity of our compounds was evaluated using a fluorescence polarization (FP)-based interaction inhibition assay and electrophoretic mobility shift assay (EMSA). Even though a crystal structure of the ligand protein complex was not available, we successfully conducted hit optimization toward a low micromolar protein-nucleic acid-interaction inhibitor. Additionally, we applied STD-NMR studies to corroborate target binding and to gain insights into the binding orientation of our most potent inhibitor, providing opportunities for further rational design of more efficient LANA-targeting anti KSHV agents in future studies.
- Berwanger, Aylin,Empting, Martin,Jakob, Valentin,Kirsch, Philine,Rinkes, Julia,Schulz, Thomas F.,Stein, Saskia C.
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supporting information
(2020/07/07)
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- Biological evaluation of new mimetics of annonaceous acetogenins: Alteration of right scaffold by click linkage with aromatic functionalities
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A small library of analogues of annonaceous acetogenins through click linkage with aromatic moieties is established using a convergent modular fragment-assembly approach. These analogues exhibited low micromolar inhibitory activities against the proliferation of several human cancer cell lines. Structure-activity relationship (SAR) of these analogues indicates that replacement of the methoxy groups of ubiquinone ring with methyl groups is proved to be a useful strategy for improving the anticancer activity of quinone-acetogenin hybrids.
- Liu, Yanghan,Xiao, Qicai,Liu, Yongqiang,Li, Zheng,Qiu, Yatao,Zhou, Guang-Biao,Yao, Zhu-Jun,Jiang, Sheng
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p. 248 - 258
(2014/04/17)
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- Copper(II)-catalyzed conversion of aryl/heteroaryl boronic acids, boronates, and trifluoroborates into the corresponding azides: Substrate scope and limitations
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We report the copper(II)-catalyzed conversion of organoboron compounds into the corresponding azide derivatives. A systematic series of phenylboronic acid derivatives is evaluated to examine the importance of steric and electronic effects of the sub-stituents on reaction yield as well as functional group compatibility. Heterocyclic substrates are also shown to participate in this mild reaction while compounds incorporating B-C(sp3) bonds are unreactive under the reaction conditions. The copper(II)-catalyzed boronic acid-azide coupling reaction is further extended to both boronate esters and potassium organotrifluoroborate salts. The method described herein complements existing procedures for the preparation of aryl azides from the respective amino, triazene, and halide derivatives and we expect that it will greatly facilitate copper- and ruthenium-catalyzed azide-alkyne cycloaddition reactions for the preparation of diversely functionalized 1-aryl- or 1-heteroaryl-1,2,3- triazoles derivatives. Georg Thieme Verlag Stuttgart.
- Grimes, Kimberly D.,Gupte, Amol,Aldrich, Courtney C.
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experimental part
p. 1441 - 1448
(2010/10/03)
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- Photolysis of Quinolyl and Isoquinolyl Azides in Primary and Secondary Aliphatic Amines: Synthesis of Bicyclic Azepines, Diazepines, and Quinolyl- and Isoquinolyl-diamines
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Photolysis of the title compounds in primary aliphatic amines gave in some cases bicyclic azepines and diazepines as well as o-diamines, while in secondary amines mainly the appropriate o-diamines are obtained.On the basis of the many examples studied guidelines are put forward to predict the nature of products from photolysis of bicyclic azides in primary and secondary amines and to obtain maximum yields.
- Hollywood, Frank,Nay, Barry,Scriven, Eric F. V.,Suschitzky, Hans,Khan, Zafar U.,Hull, Roy
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p. 421 - 429
(2007/10/02)
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