3-[1-(2-Benzoxazolyl)hydrazino]propanenitrile derivatives: inhibitors of immune complex induced inflammation
摘要:
3-[1-(2-Benzoxazolyl)hydrazino]propanenitrile derivatives were evaluated in the dermal and pleural reverse passive Arthus reactions in the rat. In the pleural test these compounds were effective in reducing exudate volume and accumulation of white blood cells. This pattern of activity was similar to that of hydrocortisone and different from that of indomethacin. The structural requirements for inhibiting the Arthus reactions were studied by systematic chemical modification of 1. These structure-activity relationship studies revealed that nitrogen 1' of the hydrazino group is essential for activity and must be electron rich, whereas chemical modifications of other sites of 1 had only a modest effect on activity.
Pd-Catalyzed Synthesis of Piperazine Scaffolds Under Aerobic and Solvent-Free Conditions
作者:Sean W. Reilly、Robert H. Mach
DOI:10.1021/acs.orglett.6b02591
日期:2016.10.21
A facile Pd-catalyzed methodology providing an efficient synthetic route to biologically relevant arylpiperazines under aerobic conditions is reported. Electron donating and sterically hindered aryl chlorides were aminated to afford yields up to 97%, with examples using piperazine as solvent, illustrating an ecofriendly, cost-effective synthesis of these privileged structures.
[EN] BENZOPYRANE AND IMIDAZOLE DERIVATIVES USEFUL FOR THE STABILIZATION OF AMYLOIDOGENIC IMMUNOGLOBULIN LIGHT CHAINS<br/>[FR] DÉRIVÉS DE STABILISATION DE BENZOPYRANE ET D'IMIDAZOLE UTILISÉS POUR LA STABILISATION DE CHAÎNES LÉGÈRES D'IMMUNOGLOBULINES AMYLOÏDOGÉNIQUES
申请人:SCRIPPS RESEARCH INST
公开号:WO2020205683A1
公开(公告)日:2020-10-08
In immunoglobulin light chain amyloidosis (AL), the unique antibody light chain (LC) protein that is secreted by monoclonal plasma cells in each patient misfolds and/or aggregates, a process leading to organ degeneration. For treating AL patients, such as those with substantial cardiac involvement who have difficulty tolerating existing chemotherapy regimens, provided herein are small molecule compounds of Formula Ia, Formula Ib, and Formula II that are kinetic stabilizers of the native dimeric structure of full-length LCs, which compounds can slow or stop the amyloidogenicity cascade at its origin.
Condensed 4,5,6,7-tetrahydrobenzo[C]thiophenes as enhancer for cell
申请人:Takeda Chemical Industries, Ltd.
公开号:US06066658A1
公开(公告)日:2000-05-23
A compound represented by the formula: ##STR1## wherein X represents a sulfur atom or an oxygen atom; Y represents an optionally oxidized sulfur atom or an oxygen atom; Z represents a bond or a divalent hydrocarbon group; R.sup.1 represents an optionally substituted hydrocarbon group; R.sup.2 represents an optionally amidated or esterified carboxyl group; ring A represents an optionally substituted aromatic 5-membered heterocyclic ring; or a salt thereof. A compound of the above formula possesses cell differentiation inducing factor action-enhancing activity and anti-matrix metalloprotease activity and that is useful in the prevention and treatment of bone diseases such as osteoporosis, bone fractures, osteoarthritis and rheumatoid arthritis, arteriosclerosis, cancer metastasis, and diseases based on nerve degeneration.