Synthesis and Evaluation of Duocarmycin and CC-1065 Analogues Incorporating the 1,2,9,9a-Tetrahydrocyclopropa[<i>c</i>]benz[<i>e</i>]-3-azaindol-4-one (CBA) Alkylation Subunit
作者:Jay P. Parrish、David B. Kastrinsky、Inkyu Hwang、Dale L. Boger
DOI:10.1021/jo035119f
日期:2003.11.1
the carbon analogue, including the stereoelectronic alignment of the key cyclopropane, its bond lengths, and the bond length of the diagnostic C3a-N2 bond, reflecting the extent of vinylogous amide (amidine) conjugation. Despite these structural similarities, CBA and its derivatives were found to be much more reactive toward solvolysis and hydrolysis, much less effective DNA alkylating agents (1000-fold)
有效的八步合成法(占总比例的53%)和1,2,9,9a-四氢环丙烷[c]苯并[e] -3-氮杂吲哚-4-酮(CBA)及其衍生物的aza变体评估CC-1065 /杜卡霉素烷基化亚基的详细信息。这种独特的深层氮杂修饰提供了前所未有的2-氮杂-4,4-螺环丙环己二酮,其化学和结构特征(X射线)。CBA在结构上与CBI(碳类似物)相同,包括关键的环丙烷的立体电子排列,其键长以及诊断性C3a-N2键的键长,反映了乙烯基酰胺键的结合程度。尽管存在这些结构上的相似之处,但发现CBA及其衍生物对溶剂分解和水解的反应性更高,DNA烷基化剂的效率要低得多(1000倍),