A new family of boron difluoride-rigidified dyes, phenanthro[9,10-d]imidazole-quinoline borondifluoride (PQBD), with solid-state fluorescence has been designed and synthesized. The novel series of PQBD are advantageous over the typical boron difluoride-rigidified dyes such as BODIPYs in terms of large Stokesshift and red fluorescence in the solid state.
设计并合成了一种新的二氟化硼刚性染料家族,即菲咯啉[ 9,10 - d ]咪唑-喹啉二氟化硼(PQBD),具有固态荧光。就大的斯托克斯频移和固态红色荧光而言,新颖的PQBD系列优于典型的二氟化硼刚性化染料(如BODIPYs)。
Quinoline and isoquinoline derivatives, a process for their production and their use as inflammation inhibitors
申请人:Schering AG
公开号:US20040116694A1
公开(公告)日:2004-06-17
The invention relates to quinoline and isoquinoline derivatives of general formula I
1
a process for their production and their use as inflammation inhibitors.
A series of nitrated 2-substituted-quinolines was synthesized and evaluated in vitro toward Leishmania donovani promastigotes. In parallel, the in vitro cytotoxicity of these molecules was assessed on the murine J774 and human HepG2 cell lines. Thus, a very promising antileishmanial hit molecule was identified (compound 21), displaying an IC50 value of 6.6 mu M and CC50 values >= 100 mu M, conferring quite good selectivity index to this molecule, in comparison with 3 drug-compounds of reference (amphotericin B, miltefosine and pentamidine). Compound 21 also appears as an efficient in vitro antileishmanial molecule against both Leishmania infantum promastigotes and the intracellular L. donovani amastigotes (respective IC50 = 7.6 and 6.5 mu M). Moreover, hit quinoline 21 does not show neither significant antiplasmodial nor antitoxoplasmic in vitro activity and though, presents a selective antileishmanial activity. Finally, a structure activity relationships study enabled to define precisely the antileishmanial pharmacophore based on this nitroquinoline scaffold: 2-hydroxy-8-nitroquinoline. (C) 2012 Elsevier Masson SAS. All rights reserved.
NISHIKAWA MAKOTO; SAEKI SEITARO; HAMANA MASATOMO; NODA HIROSHI, CHEM. AND PHARM. BULL., 1980, 28 NO 8, 2436-2442