The rate constants for the hydrolysis of several 6 -substituted 2deoxyadenosines were measured at different concentrations of oxonium ion in order to assess the role of various 6 and sugar protecting groups in depurination reaction encountered in nucleic acid synthesis. The site of protonation was established by recording the 15N NMR spectra in DMSO-6 both in the absence and presence of trifluoroacetic
在不同浓度的
氧鎓离子下,测量了几种6-取代的2个
脱氧腺苷的
水解速率常数,以评估各种6-和糖保护基在
核酸合成中遇到的
脱嘌呤反应中的作用。通过在不存在和存在
三氟乙酸的情况下在
DMSO- 6中记录15 N NMR光谱来确定质子化的位点。6-酰基-2
脱氧腺苷的单阳离子的异常不稳定性是由优选的7个质子化引起的。