Title of article :
Calix[4]arenesulfonylamidines. Synthesis, structure and influence on Mg2+, ATP-dependent calcium pumps
Author/Authors :
Rodik، نويسنده , , Roman and Boiko، نويسنده , , Vyacheslav and Danylyuk، نويسنده , , Oksana and Suwinska، نويسنده , , Kinga and Tsymbal، نويسنده , , Ivan and Slinchenko، نويسنده , , Natalya and Babich، نويسنده , , Lidiya and Shlykov، نويسنده , , Sergiy and Kosterin، نويسنده , , Sergiy and Lipkowski، نويسنده , , Janusz and Kalchenko، نويسنده , , Vitaly، نويسنده ,
Abstract :
Calix[4]arenes, functionalized at the wide rim with two or four N2-sulfonylamidine groups were prepared. In the crystalline state, the bowl shaped calix[4]arene-bis-N-sulfonyltrifluoromethylacetamidine 3b is associated through intermolecular hydrogen bonds, NH⋯OS, while the phenyl rings of the Ph–SO2-fragments are hosted in the cavities of the nearby molecules of 3b. Calixarene 4b influences Ca2+ transport in Mg2+, ATP-dependent calcium pumps.
Keywords :
X-ray crystallography , Amidines , Ca2+ transport , Calixarenes , Hydrogen bonds
