Five- and Six-Coordinate Adducts of Nitrosamines with Ferric Porphyrins: Structural Models for the Type II Interactions of Nitrosamines with Ferric Cytochrome P450
作者:Nan Xu、Lauren E. Goodrich、Nicolai Lehnert、Douglas R. Powell、George B. Richter-Addo
DOI:10.1021/ic901751z
日期:2010.5.17
adducts of synthetic iron porphyrins. The reactions of the cations [(por)Fe(THF)2]ClO4 (por = TPP, TTP, OEP) with dialkylnitrosamines (R2NNO; R2 = Me2, Et2, (cyclo-CH2)4, (cyclo-CH2)5, (PhCH2)2) in toluene generate the six-coordinate high-spin (S = 5/2) [(por)Fe(ONNR2)2]ClO4 compounds and a five-coordinate intermediate-spin (S = 3/2) [(OEP)Fe(ONNMe2)]ClO4 derivative in 57−72% yields (TPP = 5,10,15,20-te
亚硝胺以其毒性和致癌特性而闻名。亚硝胺的代谢活化通过与含血红素的细胞色素 P450 酶的相互作用发生。我们报告了合成铁卟啉的许多亚硝胺加合物的制备和结构表征。阳离子 [(por)Fe(THF) 2 ]ClO 4 (por = TPP, TTP, OEP) 与二烷基亚硝胺(R 2 NNO; R 2 = Me 2 , Et 2 , ( cyclo -CH 2 ) 4 的反应, (环-CH 2 ) 5 , (PhCH 2 ) 2) 在甲苯中生成六配位高自旋 ( S = 5/2) [(por)Fe(ONNR 2 ) 2 ]ClO 4化合物和五配位中间自旋 ( S = 3/2) [(OEP )Fe(ONNMe 2 )]ClO 4衍生物的产率为 57-72%(TPP = 5,10,15,20-四苯基卟啉二价阴离子,TTP = 5,10,15,20-四-对甲苯基卟啉二价阴离子,OEP = 2 ,3,7,8