1,2,5-Oxadiazole analogues of leflunomide and related compounds
摘要:
A new series of compounds, structurally related to leflunomide, based on the 1,2,5-oxadiazole ring system (furazan) has been synthesised, and their ability to undergo ring scission at physiological pH to afford the corresponding cyano-oximes has been analyzed. The latter, together with the respective nitro derivatives obtained by oxidation, have been characterised as weak inhibitors of rat dihydroorotate dehydrogenase (DHODH). (C) 2010 Elsevier Masson SAS. All rights reserved.
A system and method for producing a near-infrared sensitive luminescent materials beyond 1000 nm is disclosed. The method includes reacting K
2
[PtCl
4
] and cyanoxime ligands in an aqueous solution to achieve dark-green one-dimensional coordination-polymeric materials having a molecular formula of PtL
2
, wherein L are the cyanoxime ligands having a molecular formula of NC—C(═NOH)—R with R being an electron withdrawing group such as: N′N-diethylacetamide, N-piperidine, N-morpholyl, 2-pyridine, benzoyl, or N-pyrrolidine.