Synthesis of <i>N</i>-acyl amide natural products using a versatile adenylating biocatalyst
作者:Piera M. Marchetti、Shona M. Richardson、Noor M. Kariem、Dominic J. Campopiano
DOI:10.1039/c9md00063a
日期:——
Naturalproducts are secondary metabolites produced by many different organisms such as bacteria, fungi and plants. These biologically active molecules have been widely exploited for clinical application. Here we investigate TamA, a key enzyme from the biosynthetic pathway of tambjamine YP1, an acylated bipyrrole that is produced by the marine microorganism Pseudoalteromonas tunicata. TamA is a didomain
A series of SPM VIII analogs were synthesized to investigate the effect of the amino acid moiety on the antitumor activity. The L-threonine analog and the glycylglycine analog of SPM VIII showed much higher cytotoxity to P388 murine leukemia cells (IC50 5.8 nM and 0.11 nM, respectively) than SPM VIII (IC50 25 nM). However, replacement of the glycine moiety with other amino acids greatly reduced the antitumor activity against COL-1 human colon cancer xenograft model. This study indicated that the glycine moiety of SPM VIII is crucial for the antitumor effect.
Method for preparing N-long chain acyl neutral amino acid
申请人:AJINOMOTO CO. INC.
公开号:US20030125227A1
公开(公告)日:2003-07-03
A method for preparing a highly purified N-long chain acyl neutral amino acid for use of a detergent and the like in a simple and convenient manner and in a high yield by reacting a neutral amino acid such as glycine, &ggr;-aminobutyric acid, and alanine, with a saturated or unsaturated fatty acid halide having 8 to 22 carbon atoms, wherein the reaction is performed in a mixture of water and one or more kinds of hydrophilic organic solvents selected from the group consisting of acetone, acetonitrile, a secondary alcohol having 3 or 4 carbon atoms, and a tertiary alcohol having 4 carbon atoms such as isopropanol, sec-butanol, and tert-butanol in the presence of a base.
The present invention offers a detergent composition containing an N-acylthreonine salt which exhibits little irritation to the skin and hair as well as an improved foam maintenance, foam quality and feel upon use.
Provided is a detergent composition containing (A) N-acylthreonine salt in which the acyl group is a fatty acid residue having 8-22 carbon atoms and (B) higher fatty acid salt having 8-22 carbon atoms and also a detergent composition as such which further contains another surface-active agent.
Pharmaceutical formulations for the oral delivery of peptide or protein drugs
申请人:Cyprumed GmbH
公开号:EP3006045A1
公开(公告)日:2016-04-13
The present invention relates to improved pharmaceutical formulations, uses and methods for the oral delivery of peptide or protein drugs with advantageously high bioavailability, safety and cost-effectiveness. In particular, the invention provides a peptide or protein drug having a molecular weight of equal to or less than about 50 kDa for use as a medicament, wherein said peptide or protein drug is to be administered orally in combination with a pharmaceutically acceptable copper salt/complex and/or a pharmaceutically acceptable zinc salt/complex, and with a pharmaceutically acceptable reducing agent. The invention also provides a pharmaceutical composition comprising: a peptide or protein drug having a molecular weight of equal to or less than about 50 kDa; a pharmaceutically acceptable copper salt/complex and/or a pharmaceutically acceptable zinc salt/complex; and a pharmaceutically acceptable reducing agent.