- PHOSPHONATE-CHLOROQUINE CONJUGATES AND METHODS USING SAME
-
The present invention provides compositions and methods for providing controllable local delivery of a conjugate of chloroquine (CQ) and a bisphosphonate to treat diseases characterized by abnormal bone metabolism. In certain embodiments, the invention is used as a treatment for a subject with diseases and disorders characterized by bone loss.
- -
-
-
- Synthesis of ring-substituted 4-aminoquinolines and evaluation of their antimalarial activities
-
A simple two-step synthesis method was used to make 51 B-ring-substituted 4-hydroxyquinolines allowing analysis of the effect of ring substitutions on inhibition of growth of chloroquine sensitive and resistant strains of Plasmodium falciparum, the dominant cause of malaria morbidity. Substituted quinoline rings other than the 7-chloroquinoline ring found in chloroquine were found to have significant activity against the drug-resistant strain of P. falciparum W2.
- Madrid, Peter B.,Sherrill, John,Liou, Ally P.,Weisman, Jennifer L.,DeRisi, Joseph L.,Guy, R. Kiplin
-
p. 1015 - 1018
(2007/10/03)
-
- Structure-activity relationships for antiplasmodial activity among 7- substituted 4-aminoquinolines
-
Aminoquinolines (AQs) with diaminoalkane side chains (-HNRNEt2) shorter or longer than the isopentyl side chain [-HNCHMe(CH2)3NEt2] of chloroquine are active against both chloroquine-susceptible and -resistant Plasmodium falciparum. (De, D.; et al. Am. J. Trop. Med. Hyg. 1996, 55, 579-583). In the studies reported here, we examined structure-activity relationships (SARs) among AQs with different N,N-diethyldiaminoalkane side chains and different substituents at the 7-position occupied by Cl in chloroquine. 7-Iodo- and 7- bromo-AQs with diaminoalkane side chains [-HN(CH2)2NEt2, -HN(CH2)3NEt2, or -HNCHMeCH2NEt2] were as active as the corresponding 7-chloro-AQs against both chloroquine-susceptible and -resistant P. falciparum (IC50s of 3-12 nM). In contrast, with one exception, 7-fluoro-AQs and 7-trifluoromethyl-AQs were less active against chloroquine-susceptible P. falciparum (IC50s of 15-50 nM) and substantially less active against chloroquine-resistant P. falciparum (IC50s of 18-500 nM). Furthermore, most 7-OMe-AQs were inactive against both chloroquine-susceptible (IC50s of 17-150 nM) and -resistant P. falciparum (IC50s of 90-3000 nM).
- De, Dibyendu,Krogstad, Frances M.,Byers, Larry D.,Krogstad, Donald J.
-
p. 4918 - 4926
(2007/10/03)
-
