Synthesis and Structure−Activity Relationship Studies of CD4 Down-Modulating Cyclotriazadisulfonamide (CADA) Analogues
摘要:
HIV attachment via the CD4 receptor is an important target for developing novel approaches to HIV chemotherapy. Cyclotriazadisulfonamide (CADA) inhibits HIV at submicromolar levels by specifically down-modulating cell-surface and intracellular CD4. An effective five-step synthesis of CADA in 30% overall yield is reported. This synthesis has also been modified to produce more than 50 analogues. Many tail-group analogues have been made by removing the benzyl tail of CADA and replacing it with various alkyl, acyl, alkoxycarbonyl and aminocarbonyl substituents. A series of sidearm analogues, including two unsymmetrical compounds, have also been prepared by modifying the CADA synthesis, replacing the toluenesulfonyl sidearms with other sulfonyl groups. Testing 30 of these compounds in MT-4 cells shows a wide range of CD4 down-modulation potency, which correlates with ability to inhibit HIV-1. Three-dimensional quantitative structure-activity relationship (3D-QSAR) models were constructed using comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) approaches. The X-ray crystal structures of four compounds, including CADA, show the same major conformation of the central 12-membered ring. The solid-state structure of CADA was energy minimized and used to generate the remaining 29 structures, which were similarly minimized and aligned to produce the 3D-QSAR models. Both models indicate that steric bulk of the tail group, and, to a lesser extent, the sidearms mainly determine CD4 down-modulation potency in this series of compounds.
申请人:The Research Foundation of State University of New York
公开号:US06342492B1
公开(公告)日:2002-01-29
The invention relates to a family of new synthetic triamine compounds which can be used in antiviral pharmaceutical compositions.
本发明涉及一族新的合成三胺化合物,可用于抗病毒药物组合物中。
Triaza compound immunoregulatory agents
申请人:——
公开号:US20040220164A1
公开(公告)日:2004-11-04
The invention provides certain macrocyclic triaza compounds which down-regulate CD4 expression for use in the treatment of autoimmune diseases and inflammatory diseases or conditions. In a specific embodiment, the invention provides certain naphthalene substituted triaza macrocycles which exhibit high activity for down regulation of CD4 expression. In particular, triaza macrocycles having dansyl groups are provided for use in pharmaceutical compositions.
A method of inhibiting viruses in which a virus is contacted with an antiviral amount of a compound of formula I. Activity is shown against HIV and other viruses.
1
wherein
W is a bridge carbon which has a polar or non-polar side group;
X and Y independently are an aromatic group, an alkyl group, a sulfonyl group or a carbonyl group,
said aromatic group is selected from the group consisting of Ar, Ar sulfonyl, Ar carboxy and Ar alkyl, where Ar is an aromatic cyclic or aromatic heterocyclic ring having from five to seven members;
said alkyl group having from one to ten carbons;
Z is a group listed for X and Y, a fused aryl moiety having from seven to ten carbons or hydrogen;
a, d and e independently are a number from zero to 10;
c and b independently are a number from one to 10; and the formula is cyclic or acyclic and includes sufficient hydrogens for a stable molecule.
The invention provides certain macrocyclic triaza compounds which down-regulate CD4 expression for use in the treatment of autoimmune diseases and inflammatory diseases or conditions. In a specific embodiment, the invention provides certain naphthalene substituted triaza macrocycles which exhibit high activity for down regulation of CD4 expression. In particular, triaza macrocycles having dansyl groups are provided for use in pharmaceutical compositions.