Synthesis and antitumor properties of N1-acyloxymethyl derivatives of bis(2,6-dioxopiperazines).
作者:Jun Chao CAI、Han Li SHU、Cai Fang TANG、Toshihiko KOMATSU、Toshiyuki MATSUNO、Toshiharu NARITA、Shin-ichi YAGUCHI、Yuji KOIDE、Muneaki TAKASE
DOI:10.1248/cpb.37.2976
日期:——
Many N1-acyloxymethyl derivatives VI of bis(2, 6-dioxopiperazine) I, ICRF-154, were prepared and tested for antitumor activity. The treatment of I with formaldehyde gave a crystalline bis(N1-hydroxymethyl) derivative VII, which was acylated under various conditions to give bis(N1-acyloxymethyl) derivatives VI. Antitumor activity of VI against P388 leukemia in mice was studied.Several bis(N1-acyloxymethyl)compounds such as phenylacetyloxymethyl VI-6, methoxycarbonyloxymethyl VI-41, isobutoxycarbonyloxymethyl VI-44, and furancarboxymethyl VI-38 compounds were found to have potent antitumor activities. On the other hand, water-soluble esters having an amine or a carboxylic acid function in their acyl groups showed rather reduced activity.These bis(N-1-acyloxymethyl) derivatives VI were presumably hydrolyzed into the parent bis(2, 6-dioxopiperazine) I by nonspecific esterase in the body to exhibit their antitumor activity.
许多双(2,6-二氧哌嗪)I、ICRF-154的N1-酰氧甲基衍生物VI被制备并测试了其抗肿瘤活性。将I与甲醛反应得到结晶的双(N1-羟甲基)衍生物VII,该衍生物在不同条件下酰化得到双(N1-酰氧甲基)衍生物VI。研究了VI对小鼠P388白血病的抗肿瘤活性。发现几种双(N1-酰氧甲基)化合物如苯乙酰氧甲基VI-6、甲氧羰基氧甲基VI-41、异丁氧羰基氧甲基VI-44和呋喃甲酰甲基VI-38具有强大的抗肿瘤活性。另一方面,酰基中含有氨基或羧酸功能的水溶性酯类显示出较低的活性。这些双(N-1-酰氧甲基)衍生物VI可能通过体内非特异性酯酶水解为母体双(2,6-二氧哌嗪)I来展现其抗肿瘤活性。