Dihydroasparagusic Acid: Antioxidant and Tyrosinase Inhibitory Activities and Improved Synthesis
作者:Alessandro Venditti、Manuela Mandrone、Anna Maria Serrilli、Armandodoriano Bianco、Carmelina Iannello、Ferruccio Poli、Fabiana Antognoni
DOI:10.1021/jf401120h
日期:2013.7.17
Dihydroasparagusic acid (DHAA) is the reduced form of asparagusicacid, a sulfur-containingflavorcomponent produced by Asparagus plants. In this work, DHAA was synthetically produced by modifying some published protocols, and the synthesized molecule was tested in several in vitro assays (DPPH, ABTS, FRAP-ferrozine, BCB, deoxyribose assays) to evaluate its radical scavenging activity. Results show
Novel inhibitors of angiotensin converting enzyme having the general formula R--A--S--Z are disclosed as potent inhibitors of angiotensin converting enzyme and are useful anti-hypertensive agents.
β-lactam antibiotics and even clinically used serine-β-lactamase inhibitors. The wide and rapid spreading of NDM-1 gene among pathogenic bacteria has attracted extensive attention, therefore high potency NDM-1 inhibitors are urgently needed. Here we report a series of structure-guideddesign of D-captopril derivatives that can inhibit the activity of NDM-1 in vitro and at cellular levels. Structural
Artificial [FeFe]‐Hydrogenase: On Resin Modification of an Amino Acid to Anchor a Hexacarbonyldiiron Cluster in a Peptide Framework
作者:Souvik Roy、Sandip Shinde、G. Alexander Hamilton、Hilairy E. Hartnett、Anne K. Jones
DOI:10.1002/ejic.201000979
日期:2011.3
analogues of the [FeFe]-hydrogenase in designed peptides via on resinmodification of an aminoacid side chain with a dithiol functional group is described. Utilizing a unique amine side chain as anchor, the dithiol unit is coupled to the peptide via formation of an amide. This dithiol unit precisely positions the two required sulfur atoms for the formation of a [(μ-SRS)Fe(CO)3}2] cluster on reaction with
Composition to permanently reshape the hair containing at least one carboxydithiol
申请人:Blaise Christian
公开号:US20050208007A1
公开(公告)日:2005-09-22
The present invention relates to an aqueous reducing composition, for the first step of a process to permanently reshape the hair, comprising, in a cosmetically acceptable medium, one or more carboxydithiols as reducing agents.