The o-Amino-Trifluoromethyl Functionality as a Novel Synthon for 4-Fluoroquinolines
作者:Lucjan Strekowski、Alexander S. Kiselyov、Maryam Hojjat
DOI:10.1021/jo00099a014
日期:1994.10
2-Substituted 4-fluoroquinolines 3 are obtained by the reaction of 2-(trifluoromethyl)aniline (1) with lithium enolates 2 derived from methylketones. A similar reaction of 1 with lithium enolate of acetaldehyde produces 4-fluoroquinoline. 1-Fluoro-3-phenyl-4,6-phenanthroline (18) is obtained by treatment of Lithium enolate of acetophenone with 4-(trifluoromethyl)quinolin-3-amine (17). By contrast, (Z)-N-[2-(1-fluoroalkenyl)phenyl]carboxamides 10 and 12 are the products of the reaction of 1 with the respective enolate ions derived from 3-pentanone and isobutyl phenyl ketone. A unified mechanism for the formation of quinolines and carboxamides is proposed.
Strekowski Lucjan, Kiselyov Alexander S., Hojjat Maryam, J. Org. Chem, 59 (1994) N 20, S 5886-5890
作者:Strekowski Lucjan, Kiselyov Alexander S., Hojjat Maryam
DOI:——
日期:——
New triple-helix DNA stabilizing agents
作者:Lucjan Strekowski、Maryam Hojjat、Ewa Wolinska、Alesia N. Parker、Ekaterina Paliakov、Tadeusz Gorecki、Farial A. Tanious、W.David Wilson
DOI:10.1016/j.bmcl.2004.12.019
日期:2005.2
Several substituted quinolin-4-amines and heteroaromatic analogs were synthesized and evaluated for interaction with triplex polydA.2polydT and duplex polydA.polydT by using UV-thermal melting experiments. Excellent triple-helix DNA ligands with high affinity toward T.A.T triplets and triple/duplex selectivity were designed through a rational approach.