Synthesis, DNA Affinity, and Antiprotozoal Activity of Linear Dications: Terphenyl Diamidines and Analogues
摘要:
Diamidines 10a-g and 18a, b were obtained from dinitriles 9a-g and 15a, b by treatment with lithium trimethylsilylamide or upon hydrogenation of bis-O-acetoxyamidoximes. Dinitriles 9a-g were prepared via Suzuki reactions between arylboronic acids and arylnitriles. Potential prodrugs 12a-f and 17 were prepared via methylation of the diamidoximes 11a-f and 16a. Significant DNA affinities for rigid-rod molecules were observed. Compounds 10a, 10b, 10d, 18a, and 18b show IC50 values of 5 nM or less against Trypanosoma brucei rhodesiense ( T. b. r.) and 10a, 10b, 10e, 18a, and 18b gave similar ones against Plasmodium falciparum ( P. f.). The dications, 10a, 10d, 10f, and 10g are more active than furamidine in vivo. The prodrugs are only moderately effective on oral administration. Mouse liver microsome bioconversion of the methamidoxime prodrugs is significantly reduced from that of pafuramidine and suggests that the in vivo efficacy of these prodrugs is, in part, due to poor bioconversion.
Method and compositions for identifying anti-HIV therapeutic compounds
申请人:Arimilli N. Murty
公开号:US20050239054A1
公开(公告)日:2005-10-27
Methods are provided for identifying anti-HIV therapeutic compounds substituted with carboxyl ester or phosphonate ester groups. Libraries of such compounds are screened optionally using the novel enzyme GS-7340 Ester Hydrolase. Compositions and methods relating to GS-7340 Ester Hydrolase also are provided.
Linear dicationic terphenyls and their aza analogues as antiparasitic agents
申请人:THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
公开号:EP1736466A1
公开(公告)日:2006-12-27
Novel dicationic terphenyl compounds and their aza analogues. Methods for combating microbial infections with novel dicationic terphenyl compounds and their aza analogues. Processes for synthesizing novel dicationic terphenyl compounds and their aza analogues.
Cellular accumulation of phosphonate analogs of hiv protease inhibitor compounds
申请人:Arimilli N. Murty
公开号:US20070010489A1
公开(公告)日:2007-01-11
Phosphonate substituted compounds with HIV protease inhibitory properties having use as therapeutics and for other industrial purposes are disclosed. The compositions inhibit 5 HIV protease activity and/or are useful therapeutically for the treatment of AIDS and other antiviral infections, as well as in assays for the detection of HIV protease.
申请人:The University of North Carolina at Chapel Hill
公开号:US07964619B2
公开(公告)日:2011-06-21
Disclosed herein are novel dicationic teraryl compounds and their aza analogues, including compounds of Formula (IIe):
wherein p and q are each 0 and each A, Y and Z is CR4. An exemplary compound of Formula (IIe) is:
Methods for combating microbial infections, such as parasitic Leishmania species, with novel dicationic terphenyl compounds and their aza analogues are included. Processes for synthesizing novel dicationic terphenyl compounds and their aza analogues are disclosed along with methods for evaluation of the compounds as potential anti-protozoan agents.
Substituted pyridines as antiparasitic AZA teraryl compounds
申请人:The University of North Carolina at Chapel Hill
公开号:US08188121B2
公开(公告)日:2012-05-29
Novel aza analogues of dicationic terphenyl compounds for use in combating microbial infections are described. The compounds include those of Formula (III):
wherein one of A1, Y1, and Z1 is N; Ar1 is phenylene; and Ar3 is a nitrogen-containing aromatic group. An exemplary compound of Formula (III) is: