A series of new 4-aryloctahydropyrido[1,2-c]pyrimidine-1,3-diones 6a,b,d-h and j were synthesized by intramolecular cyclization of α-aryl-α-(1-ethoxycarbonyl-2-piperidyl)-acetamide derivatives 5a,b,d-h and j. The structures of compounds were determined by 1H and 13C nmr spectroscopy. Nmr and X-ray diffraction data indicate that the configuration at the C4, C4a stereocenters constitute RR and SS pair
通过α-芳基-α-(1-乙氧基羰基-2-哌啶基)-的分子内环化反应合成了一系列新的4-芳基氢吡啶并[1,2- c ]嘧啶-1,3-二酮6a,b,dh和j。乙酰胺衍生物5a,b,dh和j。化合物的结构通过1 H和13 C nmr光谱确定。Nmr和X射线衍射数据表明C4,C4a立体中心的构型构成RR和SS对。
Structure-activity relationship and cardiac safety of 2-aryl-2-(pyridin-2-yl)acetamides as a new class of broad-spectrum anticonvulsants derived from Disopyramide
作者:Maciej Dawidowski、Marek Król、Bartłomiej Szulczyk、Andrzej Chodkowski、Piotr Podsadni、Piotr Konopelski、Marcin Ufnal、Piotr Szuberski、Martyna Zofia Wróbel、Yihong Zhang、Aziza El Harchi、Jules C. Hancox、Dagmar Jarkovska、Eliska Mistrova、Jitka Sviglerova、Milan Štengl、Grzegorz M. Popowicz、Jadwiga Turło
DOI:10.1016/j.bioorg.2020.103717
日期:2020.5
their anticonvulsantactivity in animal models of epilepsy. The compounds were broadly active in the 'classical' maximal electroshock seizure (MES) and subcutaneous Metrazol (scMET) tests as well as in the 6 Hz and kindling models of pharmacoresistant seizures. Furthermore, the compounds showed good therapeutic indices between anticonvulsantactivity and motor impairment. Structure-activity relationship
The synthesis of 1 H-4-phenyl-pyrido-[1, 2-c]-pyrimido-1,3(2 H)- dione (VI) by condensation of phenyl-pyridyl-(2)-acetamide (I) with diethyl carbonate and sodium ethoxide, as well as the preparation of some of its derivatives, is described.