Identification of Adducts Derived from Reactions of (1-Chloroethenyl)oxirane with Nucleosides and Calf Thymus DNA
作者:Tony Munter、Lisa Cottrell、Stuart Hill、Leif Kronberg、William P. Watson、Bernard T. Golding
DOI:10.1021/tx020070e
日期:2002.12.1
rubbers. The reactions of (1-chloroethenyl)oxirane with 2'-deoxyguanosine, 2'-deoxyadenosine, 2'-deoxycytidine, thymidine, and calf thymus DNA have been studied in aqueous buffered solutions. The adducts from the nucleosides were isolated by reversed-phase HPLC, and characterized by their UV absorbance and (1)H and (13)C NMR spectroscopic and mass spectrometric features. The reaction with 2'-deoxyguanosine
(1-氯乙烯基)环氧乙烷是氯丁二烯的主要诱变产物,氯丁二烯是一种重要的大规模石油化工产品,用于制造合成橡胶。在水溶液缓冲液中研究了(1-氯乙烯基)环氧乙烷与2'-脱氧鸟苷,2'-脱氧腺苷,2'-脱氧胞苷,胸苷和小牛胸腺DNA的反应。通过反相HPLC从核苷中分离出加合物,并通过其紫外吸收和(1)H和(13)C NMR光谱和质谱特征对其进行表征。与2'-脱氧鸟苷的反应产生了一个主要加合物N7-(3-氯-2-羟基-3-丁烯-1-基)-鸟嘌呤(dGI)和八个次要加合物,它们被确定为N1-的非对映异构体对(3-氯-2-羟基-3-丁烯-1-基)-2'-脱氧鸟苷(dGII,dGIII),N3,N7-双(3-氯-2-羟基-3-丁烯-1-基) -鸟嘌呤(dGIV,dGV),N7,N9-双(3-氯-2-羟基-3-丁烯-1-基)鸟嘌呤(dGVI,dGVII)和N1,N7-双(3-氯-2-羟基-3-羟基丁烯-1-