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-