PHARMACEUTICAL COMPOSITION AND KIT CONTAINING NOVEL PENAM DERIVATIVE OR SALT THEREOF AND ONE OR MORE COMPOUNDS SELECTED FROM beta-LACTAMASE INHIBITORY COMPOUND AND ANTIBACTERIAL COMPOUND OR SALTS THEREOF
N‐phthalimidyl, benzamidyl, acetamidyl, carbamoyl, and ureayl derivatives of dihydropyridines and the application of these reagents as precursors for N‐centered radicals are presented. These aminated dihydropyridines could be used in radical‐transferhydroamination reactions of various electron‐rich as well as nonactivated olefins in the presence of thiols as polarity‐reversal catalysts. These reactions
Synthesis of cyclic α-hydrazino acid derivatives via N-acylhydrazonium ions
作者:F Rutjes
DOI:10.1016/s0040-4020(01)96267-2
日期:1993.9.17
The synthesis of various cyclic α-hydrazino esters is described. The key-step involves an intramolecular reaction of a highlyreactive N-acylhydrazonium ion, leading to a cyclic cationic intermediate which either rearranges via an aziridinium ion, or leads to the unrearranged piperazic ester. A deprotection sequence that furnishes the free α-hydrazino acids is detailed.
Heteroallyl-containing 5-nitrofuranes as new anti-Trypanosoma cruzi agents with a dual mechanism of action
作者:Alejandra Gerpe、Imeria Odreman-Nuñez、Patricia Draper、Lucı´a Boiani、Julio A. Urbina、Mercedes González、Hugo Cerecetto
DOI:10.1016/j.bmc.2007.07.031
日期:2008.1
was verified measuring cyanide dependent respiration. Inhibition of the de novo sterolbiosynthesis at the level of squalene epoxidase was confirmed, using high-resolution gas-liquid chromatography coupled to mass spectrometry, by the disappearance of the parasite's mature sterols and the concomitant accumulation of squalene. The in vitro activities of these novel compounds were superior to that of nifurtimox
[EN] SYNTHETIC CYCLIC PEPTIDE MIMETICS<br/>[FR] MIMÉTIQUES DE PEPTIDES CYCLIQUES SYNTHÉTIQUES
申请人:UNIV BAR ILAN
公开号:WO2022054062A1
公开(公告)日:2022-03-17
Described herein are synthetic cyclic peptide mimetic s comprising alternating D-amino acids and L-amino acids and amino acid derivatives, such as aza-amino acids and azasulfuryl- amino acids. Optionally, the cyclic peptide mimetic s may be conjugated to another agent via a linker to form cyclic peptide mimetic conjugates. The cyclic peptide mimetic s described herein may be used as diagnostic or therapeutic agents for diagnosis or treatment of amyloidogenic diseases.
Derivatives of N-hals-substituted amic acid hydrazides
申请人:Elfatochem North America, Inc.
公开号:US05397821A1
公开(公告)日:1995-03-14
N-(2,2,6,6-tetraalkyl-4-piperidinyl)amic acid hydrazides contain a light stabilizing group, a heat stabilizing group and an amic acid hydrazide functionality in the same molecule. The amic acid hydrazide functionality in the compounds enhances the photooxidative stabilizing properties of the hindered amine groups and contributes thermal and oxidative stabilizing and metal complexing properties to the compounds. The novel compounds are excellent light stabilizers for polyolefins, have low volatility and are not readily lost from polymeric systems via volatilization, migration or extraction.