中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3-(2-ethoxy-2-oxoethyl)-2-propargylsulfanyl-4-oxo-3,4,5,8-tetrahydro-spiro-benzo[b]thieno[2,3-d]-pyrimidine-7(6H),1'-cyclohexane | 1427557-32-1 | C22H26N2O3S2 | 430.592 |
—— | 3-(2-ethoxy-2-oxoethyl)-2-thioxo-4-oxo-1,2,3,4,5,8-hexahydro-spirobenzo[b]thieno[2,3-d]-pyrimidine-7(6H),1'-cyclohexane | 1427557-31-0 | C19H24N2O3S2 | 392.543 |
A mild and versatile method based on Cu(I)-catalyzed [3+2] cycloaddition (Meldal-Sharpless reaction) was developed to tether biomolecules, such as monosacharides or lipophylic azides, to alkyne functions of spirobenzo[b]thieno[2,3-d]pyrimidine-1´-cyclohexane. The reactions are highlighted by their modularity and high efficiency with excellent yields in most cases. The products are interesting precursors for a variety of applications.