112735-05-4Relevant articles and documents
Synthesis and pharmacology of pyrido[2,3-d]pyrimidinediones bearing polar substituents as adenosine receptor antagonists
Bulicz, Jacek,Bertarelli, Daniela C.G.,Baumert, Dieter,Fuelle, Friederike,Mueller, Christa E.,Heber, Dieter
, p. 2837 - 2849 (2006)
Amino-substituted pyrido[2,3-d]pyrimidinediones have previously been found to bind to adenosine A1 and A2A receptors in micromolar concentrations. The present study was aimed at studying the structure-activity relationships of this c
Four products from the cyano-acetyl-ation of pyrimidines: Hydrogen-bonded dimers, π-stacked hydrogen-bonded chains and hydrogen-bonded chains of edge-fused rings
Trilleras, Jorge,Low, John N.,Cobo, Justo,Marchal, Antonio,Glidewell, Christopher
, p. o149-o154 (2008)
The mol-ecules of 2-[6-amino-3-methyl-2-(methyl-sulfanyl)-4-oxo-3,4- dihydro-pyrimidin-5-yl-carbonyl]-acetonitrile, C9H10N4O2S, (I), are linked in pairs by N - H...O hydrogen bonds to form cyclic centrosymmetric R 2 2(4) dimers. Similar dimers formed by 2-(6-amino-1,3-dimethyl-2,4- dioxo-1,2,3,4-tetra-hy-dro-pyrimidin-5-yl-carbonyl)-acetonitrile, C9H10N4O3, (II), are reinforced by paired N - H...N hydrogen bonds and linked into chains of rings by C - H...O hydrogen bonds. The mol-ecules of 2-cyano-N-[6-meth-oxy-2-(methyl-sulfanyl)-pyrimidin-4-yl]-acetamide, C9H10N4O2S, (III), are linked into simple C(6) chains by an N - H...N hydrogen bond, and the chains are weakly linked into sheets by a π-π stacking inter-action. A combination of one two-centre N - H...N hydrogen bond and one three-centre C - H...(N,O) hydrogen bond links the mol-ecules of 2-cyano-N-[6-chloro-2-(methyl-sulfanyl)-pyrimidin-4-yl]-acetamide, C8H7ClN4OS, (IV), into a chain of alternating edge-fused R 2 1(6) and R 1 2(6) rings. The crystal structures reported in this study, and those of some related examples from the recent literature, show a wide variation in hydrogen-bonded aggregation consequent upon rather small changes in molecular constitution.
Reactions of uracils, 24. Multiple anellation to uracils and their analogs - An approach to Nevirapine-type tricycles
Wamhoff, Heinrich,Sattler, Christian,Sohar, Pal,Rohonczy, Janos
, p. 3919 - 3937 (2007/10/03)
Starting with 6-amino-1,3-dimethyluracil 1 a structural analog of the NNRTI Nevirapine 16 is synthesized in a sequence of two ring anellations and a Beckmann rearrangement. The anellation behavior of 3 is studied in general leading to the anellated systems 5, 7a-c, 12 a-c.