Cleavage of esters using carbonates and bicarbonates of alkali metals: synthesis of thymopentin
作者:Karen L. Kaestle、Mohmed K. Anwer、Tapan K. Audhya、Gideon Goldstein
DOI:10.1016/s0040-4039(00)92619-4
日期:1991.1
A novel method for hydrolysis of primary esters using aqueous alkalicarbonates or bicarbonates and an alcohol as cosolvent is described. Several peptide esters, including a Cbz-Arg-Lys(Cbz)-Asp(OBzl)-Val-Tyr-OBzl (sequence corresponding to the active site of thymic immunoregulatory hormone, thymopoietin), were hydrolyzed to demonstrate the utility of this method.
Aminopeptidase N (APN) is involved in different physiological and pathological processes of tumor cells, including proliferation, invasion, apoptosis and metastasis. Herein one series of compounds derived from commercially available (1S, 2S)-2-amino-1-(4-nitrophenyl) propane-1,3-diol have been designed and synthesized. Furthermore, preliminary activity evaluation showed that some compounds elicited moderate inhibitory activity against APN with compounds 10e (IC50 = 6.1 +/- 0.5 mu M) possessing the best efficacy, which could be used as the lead compound in the future for anticancer agents research. (C) 2011 Elsevier Ltd. All rights reserved.