5‐Triazinanes were used as easily accessible, bench‐stable formaldimine surrogates in the Ugi reaction for rapid assembly of glycinamide derivatives with three elements of diversity, in good to nearly quantitative yields. This protocol was applied for one‐pot two‐step syntheses of lidocaine and severalunsymmetrically substituted diketopiperazines.
Synthesis, structure, and antitumor activity of 2,9-disubstituted perhydro 2,3a,7b,9,10a,14b-hexaazadibenzotetracenes
作者:Elena B. Rakhimova、Victor Yu. Kirsanov、Elena V. Tret'yakova、Leonard M. Khalilov、Askhat G. Ibragimov、Lilya U. Dzhemileva、Vladimir A. D'yakonov、Usein M. Dzhemilev
DOI:10.1039/d0ra03209c
日期:——
Catalytic methods for the synthesis of previously unknown 2,9-disubstituted 3bR*,7aR*,10bR*,14aR*-cis-14c,14d-perhydro-2,3a,7b,9,10a,14b-hexaazadibenzotetracenes with pronounced antitumor activity have been developed.
Synthesis of Diversely Substituted Imidazolidines
<i>via</i>
[3+2] Cycloaddition of 1,3,5‐Triazinanes with Donor‐Acceptor Aziridines and Their Anti‐Tumor Activity
cycloaddition of 1,3,5-triazinanes with donor-acceptor aziridines has been developed, accessing diverselysubstituted imidazolidines high efficiency. Mechanistic investigations support the formation of imidazolidines through an SN1-like pathway. Furthermore, these imidazolidines exhibit promising anti-tumor activity against a series of human cancer cell lines.
已经开发了AY(OTf)3催化的供体-受体氮丙啶与1,3,5-三嗪并[3 + 2]环加成反应,可高效获得各种取代的咪唑烷。机理研究支持通过S N 1样途径形成咪唑烷。此外,这些咪唑烷类化合物显示出对一系列人类癌细胞系的有希望的抗肿瘤活性。
<i>Tetra</i>-Substituted Pyridinylimidazoles As Dual Inhibitors of p38α Mitogen-Activated Protein Kinase and c-Jun <i>N</i>-Terminal Kinase 3 for Potential Treatment of Neurodegenerative Diseases
作者:Felix Muth、Marcel Günther、Silke M. Bauer、Eva Döring、Sabine Fischer、Julia Maier、Peter Drückes、Jürgen Köppler、Jörg Trappe、Ulrich Rothbauer、Pierre Koch、Stefan A. Laufer
DOI:10.1021/jm501557a
日期:2015.1.8
Tetra-substituted imidazoles were designed as dualinhibitors of c-JunN-terminalkinase (JNK) 3 and p38αmitogen-activatedprotein (MAP) kinase. A library of 45 derivatives was prepared and evaluated in a kinase activity assay for their ability to inhibit both kinases, JNK3 and p38α MAP kinase. Dualinhibitors with IC50 values down to the low double-digit nanomolar range at both enzymes were identified
Synthesis of 1,2,3,4‐Tetrahydrobenzofuro[3,2‐
<i>d</i>
]pyrimidines via [4+2] Annulation Reaction of 1,3,5‐Triazinanes and Aurone‐Derived α,β‐Unsaturated Imines
A [4+2] annulation reaction of 1,3,5‐triazinanes and aurone‐derived α,β‐unsaturated imines has been developed, which enables the synthesis of 1,2,3,4‐tetrahydrobenzofuro[3,2‐d]pyrimidines under thermal conditions in high yields. This protocol is catalyst‐free and additive‐free.