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
Trideuteromethylation Enabled by a Sulfoxonium Metathesis Reaction
作者:Zuyuan Shen、Shilei Zhang、Huihui Geng、Jiarui Wang、Xinyu Zhang、Anqi Zhou、Cheng Yao、Xiaobei Chen、Wei Wang
DOI:10.1021/acs.orglett.8b03641
日期:2019.1.18
A conceptually novel sulfoxonium metathesisreaction between TMSOI and cost-effective DMSO-d6 is developed for the efficient generation of a new trideuteromethylation reagent TDMSOI. The new reagent TDMSOI is produced highly efficiently by simply heating a mixture of TMSOI and DMSO-d6 and directly used for subsequent trideuteromethylation in a “one-pot” operation. The preparative power of the new versatile
TMSOI 和经济高效的 DMSO- d 6之间的概念上新颖的硫鎓复分解反应被开发出来,用于有效生成新型三氘代甲基化试剂 TDMSOI。新试剂TDMSOI只需加热TMSOI和DMSO- d 6的混合物即可高效生产,并直接用于后续的“一锅”操作中的三氘代甲基化。新的多功能试剂和“一锅”方案的制备能力通过其以高产率和有用的方式将-CD 3部分安装到广泛的功能中而得到证明,包括苯酚、苯硫酚、酸性胺和烯醇化亚甲基单元。氘化水平 (>87% D)。
Rhodium-catalyzed tunable oxidative cyclization toward the selective synthesis of α-pyrones and furans
作者:Jiaping Wu、Dongxu Wang、Yanjun Wan、Cheng Ma
DOI:10.1039/c5cc09137c
日期:——
tunable oxidative cyclization of readily available N-tosylacrylamides and diazo compounds is presented, which offeres a novel method for the selective construction of fully substituted [small alpha]-pyrones and furans in...
Tzirakis, Manolis D.; Orfanopoulos, Michael, Journal of the American Chemical Society, 2009, vol. 131, p. 4063 - 4069
作者:Tzirakis, Manolis D.、Orfanopoulos, Michael
DOI:——
日期:——
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.