Backbone-modified oligopeptidic bioregulators. The synthesis and configuration of thioamide, amidoxime, cyanoamidine, and amidrazone analogs of the chemotactic peptide N-formyl-methionyl-leucyl-phenylalanine (f-Met-Leu-Phe-OR)
Fully Enzymatic Peptide Synthesis using C-Terminal tert-Butyl Ester Interconversion
作者:Timo Nuijens、Claudia Cusan、Theodorus J. G. M. van Dooren、Harold M. Moody、Remco Merkx、John A. W. Kruijtzer、Dirk T. S. Rijkers、Rob M. J. Liskamp、Peter J. L. M. Quaedflieg
DOI:10.1002/adsc.201000313
日期:2010.10.4
Chemoenzymatic peptide synthesis is potentially the most cost-efficient technology for the synthesis of short and medium-sized peptides with some important advantages. For instance, stoichiometric amounts of expensive coupling reagents are not required and racemisation does not occur, thus rendering purification easier compared to chemical peptide synthesis. The economically most attractive synthesis runs in the
Rapid and Selective Formylation With Pentafluorophenyl Formate
作者:Lajos Kisfaludy、László Ötvös, Jr.
DOI:10.1055/s-1987-27987
日期:——
Pentafluorophenyl formate reacts smoothly with N-nucleophiles under mild conditions to give the N-formyl derivatives, whereas O- and S- nucleophiles remain unaffected even in the presence of a tertiary base.
Use of vitamin D analogs to treat conditions related to increased oxidative stress
申请人:——
公开号:US20020042403A1
公开(公告)日:2002-04-11
A pharmaceutical composition for reducing the rate at which skin ages or for treating cancer, acne or rosacea. The composition comprises a pharmaceutically acceptable excipient in combination with 26,27-hexafluoro-1,25-dihydroxy vitamin D
3
. The composition is preferably administered topically at a concentration of about 0.0001% weight to about 0.01% weight.
一种药物组合物,用于降低皮肤老化速度或治疗癌症、痤疮或酒渣鼻。该组合物由药学上可接受的赋形剂与 26,27-六氟-1,25-二羟基维生素 D
3
.该组合物最好以约 0.0001% 重量比至约 0.01% 重量比的浓度局部给药。