Synthesis and properties of new substituted 1,2,4-triazoles: potential antitumor agents
作者:Yaseen A Al-Soud、Najim A Al-Masoudi、Abd El-Rahman S Ferwanah
DOI:10.1016/s0968-0896(03)00043-9
日期:2003.4
(5) and its N-2 isomer 9 furnished, after spontaneous rearrangements, the 1,2,4-triazole derivatives 8 and 10. Analogously, reaction of 4 with ethyl cyanoacetate lead to the 1,3,5-trisubstituted 1,2,4-triazoles 12, which gave on treatment with hydrazine the corresponding hydrazides 13. Treatment of 13d with galactose or phenyl isothiocayanate gave the 1-D-galactose-acylhydrazone 14 and the 1,2,4-triazole
反应性中间体4与1-(氰甲基)苯并三唑(5)及其N-2异构体9的环加成反应,在自发重排后提供了1,2,4-三唑衍生物8和10。类似地,4与氰基乙酸乙酯反应导致生成1,3,5-三取代的1,2,4-三唑12,用肼处理后得到相应的酰肼13。用半乳糖或异硫氰酸苯基酯处理13d得到1-D-半乳糖-酰基14 14和1,2,4-三唑衍生物15。化合物8c; 10b,c; 选择13a,c和14进行抗肿瘤筛选,其中8c,13a和13c显示出显着的抗白血病,卵巢癌,肾癌和肺癌活性(8c,Gl(50)为0.70 microM,0.07 microM对白血病(CCRF-CEM和RPMI-8226),针对卵巢的0.02 microM(OVCAR-3)和0。