The present disclosure provides compounds and compositions capable of extending lifespan, and methods of use thereof.
本公开提供了能够延长寿命的化合物和组合物,以及其使用方法。
Synthesis of a Selenocysteine-Containing Peptide by Native Chemical Ligation
作者:Matt D. Gieselman、Lili Xie、Wilfred A. van der Donk
DOI:10.1021/ol015712o
日期:2001.5.1
synthesis of selenocysteine derivatives and selenocysteine-containing peptides is described. Fmoc-Se-p-methoxybenzylselenocysteine (1) was prepared and used for solid-phase synthesis of peptides with an N-terminal unprotected selenocysteine. Subsequent native chemical ligation with a peptide thioester provided a 17-mer that corresponds to the C-terminus of ribonucleotide reductase with selenocysteine in place
the ′Se′ in Selective: CF3Se-containing α-aminoacidderivatives were readily synthesized from natural amino acids and [Me4N][SeCF3]. Some of the derivatives were found to be effective inhibitors towards MCF-7, HCT116, and SK-OV-3 cells. These results implicated that the CF3Se moiety can be used as a potential pharmaceutically relevant group in the synthesis and modification of biologically active
将'Se'置于选择性: CF 3 Se 含α-氨基酸衍生物很容易由天然氨基酸和[Me 4 N][SeCF 3 ]合成。一些衍生物被发现是 MCF-7、HCT116 和 SK-OV-3 细胞的有效抑制剂。这些结果暗示CF 3 Se 部分可用作生物活性分子的合成和修饰中的潜在药学相关基团。
Benzodioxole derivatives and hepatopathy improvers comprising the same
申请人:Tsumura & Co.
公开号:US05227398A1
公开(公告)日:1993-07-13
Hepatopathy improvers contain as an effective ingredient one or more of benzodioxole derivatives represented by the following formula: ##STR1## wherein A means a particular N- or S-containing group. Most of these benzodioxole derivatives are novel.