155265-57-9Relevant articles and documents
Novel Hepatitis C virus replicon inhibitors: Synthesis and structure-activity relationships of fused pyrimidine derivatives
Chris Krueger,Madigan, Darold L.,Beno, David W.,Betebenner, David A.,Carrick, Robert,Green, Brian E.,He, Wenping,Liu, Dachun,Maring, Clarence J.,McDaniel, Keith F.,Mo, Hongmei,Molla, Akhteruzzaman,Motter, Christopher E.,Pilot-Matias, Tami J.,Tufano, Michael D.,Kempf, Dale J.
scheme or table, p. 2212 - 2215 (2012/04/18)
The synthesis of several pyrido[2,3-d]pyrimidine and pyrimido[4,5-d] pyrimidine analogs is described with one such analog possessing subnanomolar potency in both genotype 1a and 1b cell culture HCV replicon assays.
A new approach to the 1,10-phenanthroline core
Chelucci, Giorgio,Addis, Daniele,Baldino, Salvatore
, p. 3359 - 3362 (2008/02/12)
A protocol for the synthesis of substituted 1,10-phenanthrolines is reported. The phenanthroline scaffold has been obtained constructing the central cycle starting from two pyridine rings. The method is hinged upon the intramolecular coupling of cis-1,2-di(2-bromo-3-pyridyl)ethenes that are in turn obtained from the Wittig reaction of 2-bromonicotinaldehydes with phosphonium salts prepared from 2-bromo-3-(bromomethyl)pyridines. Yields up to 75% have been obtained.
Process for producing halogenated heteroaryl compounds
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, (2008/06/13)
PCT No. PCT/JP97/04508 Sec. 371 Date Jun. 8, 1999 Sec. 102(e) Date Jun. 8, 1999 PCT Filed Dec. 9, 1997 PCT Pub. No. WO98/25906 PCT Pub. Date Jun. 18, 1998The present invention relates to a process for producing a compound represented by the formula (II): wherein X is a halogen atom, each of A1, A2 and A3 are the same or different and are selected from a carbon atom or a nitrogen atom, provided that at least A1, A2, or A3 is a nitrogen atom. Each of R1, R2, R3 and R4 are the same or different and are selected from a hydrogen atom, a lower alkyl group, a cyano group, a carboxyl group, a lower alkoxycarbonyl group, a halogen atom, and a nitro group. It is also provided that where R1 and R2 are adjacent to each other, R1 and R2 may be combined with each other to form a 5- or 6-membered ring which may carry on the ring thereof one substituent selected from the group consisting of a lower alkyl group, a nitrile group, a carboxyl group, a lower alkoxycarbonyl group, a carbamoyl group, a halogen atom, a nitro group, and an amino-(lower alkyl) group. The compound is prepared by reacting a compound represented by the formula (I): with a quaternary ammonium halide in the presence of phosphorus pentoxide.