Oxime Derivatives of the Intermediary Oncostatic Metabolites of Cyclophosphamide and Ifosfamide: Synthesis and Deuterium Labeling for Applications to Metabolite Quantification
作者:Susan M. Ludeman、Ellen M. Shulman-Roskes、Kenneth K.T. Wong、Sung Y. Han、Lawrence W. Anderson、John M. Strong、O. Michael Colvin
DOI:10.1002/jps.2600840403
日期:1995.4
There is ongoing interest in the selective, quantitative analysis of the cyclophosphamide metabolites 4-hydroxycyclophosphamide (2a) and aldophosphamide (3a) because these tautomers are generally believed to play a key role in oncostatic selectivity and metabolite transport. O-(2,3,4,5,6-Pentafluorobenzyl)hydroxylamine (C6F5CH2ONH2, 1 equiv) provided for the complete conversion (by 31P NMR, 60% reaction
人们一直对环磷酰胺代谢物4-羟基环磷酰胺(2a)和醛基磷酰胺(3a)的选择性定量分析感兴趣,因为通常认为这些互变异构体在抗肿瘤药的选择性和代谢物的运输中起关键作用。提供O-(2,3,4,5,6-五氟苄基)羟胺(C6F5CH2ONH2,1当量),以实现2a / 3a(17 mM)的完全转化(通过31P NMR,在20分钟内在15分钟内进行60%反应)在H 2 O / CH 3 OH中)制得E / Z-醛基磷酰胺O-(2,3,4,5,6-五氟苄基)肟[C6F5CH2ON = CHCH2CH2OP-(O)(NH2)N(CH2CH2Cl)2;E:Z = 54:46(+/- 3%平均偏差)]。在这些条件下,肟在3周内几乎没有分解(6%)。并行研究表明,4-羟基异环磷酰胺/醛基异氟酰胺完全反应,得到类似的醛基异环磷酰胺肟[C6F5CH2ON = CHCH2CH2OP(O)(NHCH2CH2Cl)2; E:Z