Glucokinase Activators Based on N-Aryl-N′-Pyridin-2-Ylurea Derivatives
作者:A. V. Semenov、I. V. Tarasova、V. S. Khramov、E. V. Semenova、V. I. Inchina、S. S. Vakaeva
DOI:10.1007/s11094-018-1792-7
日期:2018.6
A series of previously undescribed N-aryl-N′-pyridin-2-ylureas were prepared via the reaction of 2-aminopyridines with benzoyl azides and tested in vitro as activators of glucokinase. Statistically significant reductions of glucose levels as compared with controls were demonstrated for several compounds.
Substituent Effects on Pyrid-2-yl Ureas toward Intramolecular Hydrogen Bonding and Cytosine Complexation
作者:Chia-Hui Chien、Man-kit Leung、Jen-Kuan Su、Gene-Hsiang Li、Yi-Hung Liu、Yu Wang
DOI:10.1021/jo0355808
日期:2004.3.1
constants KB ranging from 30 to 1700 M-1. Electron withdrawing substituents, such as the 4-O2NC6H4− or 1-methylpyridinium-4-yl substituent, preferentially facilitate the intermolecular cytosine complexation with large binding constants.
吡啶-2-基脲两种构象异构体之间的平衡,所述(ê,Ž)和(Ž,Ž)的形式,已经研究了在DMF- d 7在- 70℃。他们中的大多数人都不太喜欢(E,Z)形式,其平衡常数K i在1-2附近。然而,发现1-甲基-2-(3-(吡啶-2-基)脲基)碘化吡啶鎓(12)的K i值为14.2±1.2。那是其他数量级的1个数量级,这表明带正电荷的1-甲基吡啶-2-基取代基将促进(E,Z)形成形式。吡啶-2-基脲与DMF- d 7中的胞嘧啶结合,结合常数K B为30到1700 M - 1。吸电子取代基,例如4-O 2 NC 6 H 4-或1-甲基吡啶-4-基取代基,以较大的结合常数优先促进分子间胞嘧啶的络合。
Skowronska-Serafinowa; Urbanski, Roczniki Chemii, 1956, vol. 30, p. 1189,1193
作者:Skowronska-Serafinowa、Urbanski
DOI:——
日期:——
A comparative study of diaryl urea molecules with and without sulfonamide group on Carbonic anhydrase IX and XII inhibition and its consequence on breast cancer cells
作者:Joy Debnath、Dhananjaya Keshamasetthy、Jacob Combs、Katherine Leon、Daniela Vullo、Abhijit Chatterjee、Robert McKenna、Claudiu T. Supuran
DOI:10.1016/j.bioorg.2024.107192
日期:2024.4
Synthesis of unsymmetrical urea from aryl- or pyridyl carboxamides and aminopyridines using PhI(OAc)<sub>2</sub><i>via in situ</i> formation of aryl- or pyridyl isocyanates
作者:Joydev K. Laha、Neha Singh、Mandeep Kaur Hunjan
DOI:10.1039/d1nj03160k
日期:——
previously, attempts have been made to trap the isocyanates. While the three pyridylisocyanates were trapped as their corresponding carbamates, 3-pyridylisocyanate was isolated and characterized. Unlike closely related previous methods reported for urea synthesis, the current method avoids direct use of isocyanates or eliminates the use of toxic phosgene for the in situ generation of isocyanates.