Reaction of the Potent Bacterial Mutagen 3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5<i>H</i>)-furanone (MX) with 2‘-Deoxyadenosine and Calf Thymus DNA: Identification of Fluorescent Propenoformyl Derivatives
作者:Tony Munter、Frank Le Curieux、Rainer Sjöholm、Leif Kronberg
DOI:10.1021/tx970195x
日期:1998.3.1
water disinfection byproduct 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX) was reacted with 2'-deoxyadenosine and calfthymusDNA in aqueous solutions at neutral conditions. HPLC analyses of the 2'-deoxyadenosinereaction mixtures showed that two previously unidentified products were formed. The products were isolated by preparative C18 chromatography, and their structures were characterized
在中性条件下,将有效的细菌诱变剂和饮用水消毒副产物3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-呋喃酮(MX)与2'-脱氧腺苷和小牛胸腺DNA反应。2'-脱氧腺苷反应混合物的HPLC分析表明,形成了两个先前未鉴定的产物。通过制备型C18色谱法分离产物,并通过UV吸收,荧光发射,1 H和13 C NMR光谱以及质谱对它们的结构进行表征。可以得出结论,在两种产品中,腺嘌呤单元的N-1和N6之间都形成了一个丙炔桥。在其中一种产品中,丙炔桥带有甲酰基[3-(2'-脱氧-β-D-呋喃呋喃糖基)-7H-8-甲酰基[2,1-i]嘧啶嘌呤++ +(pfA-dR)],另一个取代基由甲酰基和氯原子[3-(2'-脱氧-β-D-呋喃呋喃糖基)-7H-8-甲酰基-9-氯[2,1-i]嘧啶嘌呤( Cl-pfA-dR)]。这些新型加合物在可见光区域显示荧光,最大发射波长在460