1H-nuclear magnetic resonance determination of the enantiomeric purity of aliphatic primary amines, β-aminoalcohols, β-diamines and α-amino-acids with 1R-(−)-myrtenal: scope and limitations
作者:François Dufrasne、Michel Gelbcke、Jean Nève
DOI:10.1016/s1386-1425(02)00305-0
日期:2003.4
1R-(-)-myrtenal was tested as a chiral derivatising agent for the determination of the enantiomeric purity of aliphaticprimaryamines, beta-aminoalcohols, beta-diamines and alpha-amino-acids. Derivatisation procedure consists in mixing one equivalent each of the amine and 1R-(-)-myrtenal directly into the nuclear magnetic resonance (NMR) tube before addition of the appropriate deuterated solvent and
Quantitative Chiroptical Sensing of Free Amino Acids, Biothiols, Amines, and Amino Alcohols with an Aryl Fluoride Probe
作者:F. Yushra Thanzeel、Archita Sripada、Christian Wolf
DOI:10.1021/jacs.9b07588
日期:2019.10.16
present a small molecular probe that smoothly reacts with amino acids and biothiols in aqueous solution and thereby generates distinct chiroptical responses to accomplish this task. The achiral sensor is readily available, inexpensive and suitable for chiroptical analysis of each of the 19 standard amino acids, biothiols, aliphatic and aromatic amines and ami-no alcohols. The sensing method is operationally
Natural abenquines and synthetic analogues: Preliminary exploration of their cytotoxic activity
作者:Amalyn Nain-Perez、Luiz C.A. Barbosa、Diego Rodríguez-Hernández、Annemarie E. Kramell、Lucie Heller、René Csuk
DOI:10.1016/j.bmcl.2017.01.079
日期:2017.3
In this study, we explore the cytotoxicactivity of four natural abenquines (2a-d) and fourteen synthetic analogues (2e-j and 3a-h) against a panel of six human cancer cell lines using a SRB assay. It was found that most of the compounds revealed higher levels of cytotoxicactivities than naturally occurring abenquines. The analogues carrying ethylpyrrolidinyl and ethylpyrimidinyl with either an acetyl
申请人:Mayo Foundation for Medical Education and Research Minnesota corporation
公开号:US20010027174A1
公开(公告)日:2001-10-04
The invention provides a novel amino acid, neo-tryptophan, as well as polypeptides containing this novel amino acid such as neurotensin analogs. In addition, the invention provides neo-tryptophan derivatives, serotonin-like neo-tryptophan derivatives, and polypeptides containing such derivatives. The invention also provides methods for making neo-tryptophan, neo-tryptophan derivatives, serotonin-like neo-tryptophan derivatives, and compositions containing these compounds. Further, the invention provides methods for inducing a neurotensin response in a mammal as well as methods for treating a mammal having a serotonin recognition molecule.