Synthesis of isotopically labelled SGLT inhibitors and their metabolites
摘要:
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.
我们总结了 II 期代谢物的制备方法,这些方法在我们的实验室中被证明是成功的,用于合成近期候选药物的选定 O-葡糖苷酸和硫酸盐。O-葡糖苷酸AVE0897 O-酰基葡糖苷酸7、AVE2268 O-葡糖苷酸12、SAR7226 O-葡糖苷酸21的合成以及AVE2268和MDL107292 33的硫酸盐28的制备被详细描述。讨论了与 II 相代谢物相关的分析方面和强极性化合物的特定色谱方法。