928653-75-2Relevant academic research and scientific papers
Sequentially Catalyzed Three-Component Masuda-Suzuki-Sonogashira Synthesis of Fluorescent 2-Alkynyl-4-(7-azaindol-3-yl)pyrimidines: Three Palladium-Catalyzed Processes in a One-Pot Fashion
Drieβen, Daniel,Biesen, Lukas,Müller, Thomas J. J.
supporting information, p. 491 - 496 (2021/03/09)
The Masuda-Suzuki-Sonogashira sequence efficiently unites, in a one-pot fashion, a borylation, an arylation, and an alkynylation in the sense of a sequentially Pd-catalyzed three-component reaction to give fluorescent 2-alkynyl-4-(7-azaindol-3-yl) pyrimid
Painting argyrins blue: Negishi cross-coupling for synthesis of deep-blue tryptophan analogue β-(1-azulenyl)-L alanine and its incorporation into argyrin C
Stempel, Erik,Kaml, Robert Franz-Xaver,Budisa, Nediljko,Kalesse, Markus
supporting information, p. 5259 - 5269 (2018/05/16)
The argyrins are a family of non-ribosomal peptides that exhibits different biological activities through only small structural changes. Ideally, a biologically active molecule can be tracked and observed in a variety of biological and clinical settings in a non-invasive manner. As a step towards this goal, we report here a chemical synthesis of unnatural deep blue amino acid β-(1-azulenyl)-L alanine with different fluorescence and photophysical properties, which allows a spectral separation from the native tryptophan signal. This might be especially useful for cell localization studies and visualizing the targeted proteins. In particular, the synthesis of β-(1-azulenyl)-L alanine was achieved through a Negishi coupling which proved to be a powerful tool for the synthesis of unnatural tryptophan analogs. Upon β-(1-azulenyl)-L alanine incorporation into argyrin C, deep blue octapeptide variant was spectrally and structurally characterized.
3-(1,2,3-Triazol-4-yl) pyrrolo [2,3-b] pyridine derivatives
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Page/Page column 17, (2012/03/12)
Compounds of the formula (I), in which R1, R2 and R3 have the meanings indicated in claim (1), are inhibitors of PDK1 and cell proliferation/cell vitality and can be employed for the treatment of tumours.
Rapid preparation of triazolyl substituted NH-heterocyclic kinase inhibitors via one-pot Sonogashira coupling-TMS-deprotection-CuAAC sequence
Merkul, Eugen,Klukas, Fabian,Dorsch, Dieter,Graedler, Ulrich,Greiner, Hartmut E.,Mueller, Thomas J. J.
supporting information; experimental part, p. 5129 - 5136 (2011/09/13)
The one-pot, three-component Sonogashira coupling-TMS-deprotection-CuAAC ("click") sequence is the key reaction for the rapid synthesis of triazolyl substituted N-Boc protected NH-heterocycles, such as indole, indazole, 4-, 5-, 6-, and 7-azaindoles, 4,7-diazaindole, 7-deazapurines, pyrrole, pyrazole, and imidazole. Subsequently, the protective group was readily removed to give the corresponding triazolyl derivatives of these tremendously important NH-heterocycles. All compounds have been tested in a broad panel of kinase assays. Several compounds, 8f, 8h, 8k, and 8l, have been shown to inhibit the kinase PDK1, a target with high oncology relevance, and thus they are promising lead structures for the development of more active derivatives. The X-ray structure analysis of compound 8f in complex with PDK1 has revealed the detailed binding mode of the molecule in the kinase. The Royal Society of Chemistry 2011.
