10th international symposium on the synthesis and applications of isotopes and isotopically labelled compounds-synthesis of compounds labelled with long-lived isotopes Session 17, Thursday, June 18, 2009
Synthesis of isotopically labelled SGLT inhibitors and their metabolites
作者:Volker Derdau、Thorsten Fey、Jens Atzrodt
DOI:10.1016/j.tet.2009.12.003
日期:2010.2
Isotopically labelled analogues of two structurally very similar SGLT inhibitors AVE2268 (1a) and AVE8887 (1b) have been synthesized by various routes. The radioactive labelled [C-14]-AVE2268 was prepared in five steps including a Friedel-Crafts acylation as the key step for the C-14-label introduction. For [C-14]-AVE8887 the same synthetic approach was not successful and therefore an alternative thiophene metallation/Weinreb amide sequence was developed. This pathway was also applied to obtain stable isotopically labelled analogues of both AVE2268 and AVE8887. Finally, the synthesis of two metabolites, sulfate 12 and glucuronide 13 were achieved by applying interesting protecting group and oxidation strategies. (C) 2009 Elsevier Ltd. All rights reserved.
10th international symposium on the synthesis and applications of isotopes and isotopically labelled compounds-synthesis of compounds labelled with long-lived isotopes Session 17, Thursday, June 18, 2009