A Trifluoroacetic Acid-labile Sulfonate Protecting Group and Its Use in the Synthesis of a Near-IR Fluorophore
作者:Steven M. Pauff、Stephen C. Miller
DOI:10.1021/jo302065u
日期:2013.1.18
Sulfonated molecules exhibit high water solubility, a property that is valuable for many biological applications but often complicates their synthesis and purification. Here we report a sulfonate protecting group that is resistant to nucleophilic attack but readily removed with trifluoroacetic acid (TFA). The use of this protecting group improved the synthesis of a sulfonated near-IR fluorophore and
磺化分子表现出高水溶性,这一特性对许多生物应用很有价值,但通常会使它们的合成和纯化复杂化。在这里,我们报告了一种磺酸盐保护基团,它可以抵抗亲核攻击,但很容易用三氟乙酸 (TFA) 去除。这种保护基团的使用改进了磺化近红外荧光团的合成,温和的脱保护条件允许在不需要色谱法的情况下分离产物。