Heterocyclic quinones. XIII. Dimerization in the series of 5,8-quinazolinediones: Synthesis and antitumor effects of bis(4-amino-5,8-quinazolinediones).
作者:SYLVIANE GIORGI-RENAULT、JEAN RENAULT、MICHEL BARON、PATRICIA GEBEL-SERVOLLES、Jozo DELIC、SUZANNE CROS、CLAUDE PAOLETTI
DOI:10.1248/cpb.36.3933
日期:——
With the aim of obtaining new antitumor drugs more active than previously described 5, 8-quinazolinediones, a series of dimers of 5, 8-quinazolinediones linked in the 4-position by a simple or a substituted χ, ω-diaminopolymethylenic chain was studied. The structure-activity relationships of these compounds are discussed as functions of the length of the chain, presence or absence of other functional groups, nature of these functional groups, position of the chain and nature of the substituents in the 6 and (or) 7-positions. When bis (5, 8-quinazolinediones) were substituted in the 6-position with a methoxyl group, the dimerization showed a variable effect on cytotoxicity toward L 1210 leukemia cells. Bis [4-amino-bis-6, 7 (1-aziridinyl)-5, 8-quinazolinediones] which exhibited high cytotoxic activity (IC50 0.0037 to 0.018μm) were further screened in vivo for activity against murine P388 leukemia. Antitumor activity was increased by the dimerization of the molecule. The most potent compound bears an additional tertiary amino function on the chain.
为了获得比以前描述的 5,8-喹唑啉二酮更有效的抗肿瘤新药,我们研究了一系列 5,8-喹唑啉二酮的二聚体,这些二聚体在 4 位通过简单或取代的 χ,ω-二氨基多亚甲基链连接。研究讨论了这些化合物的结构-活性关系,包括链的长度、是否存在其他官能团、这些官能团的性质、链的位置以及 6 位和(或)7 位取代基的性质。当双(5,8-喹唑啉二酮)的 6 位被甲氧基取代时,二聚物对 L 1210 白血病细胞的细胞毒性有不同的影响。双[4-氨基-双-6, 7 (1-氮丙啶基)-5, 8-喹唑啉二酮]表现出很高的细胞毒性活性(IC50 0.0037 至 0.018μm),我们进一步在体内筛选了它们对小鼠 P388 白血病的活性。分子的二聚化提高了抗肿瘤活性。最有效的化合物在链上具有额外的三级氨基功能。