Synthesis of 6-Azapurines by Transformation of Toxoflavins and Reumycins (7-Azapteridines) and their Cytotoxicities
作者:Jun Ma、Fumio Yoneda、Tomohisa Nagamatsu
DOI:10.1071/ch14425
日期:——
This paper describes a reliable and facile synthesis of 6-azapurines, 1,5-dimethyl-1H-imidazo[4,5-e][1,2,4]triazin-6(5H)-ones and 5-methyl-5H-imidazo[4,5-e][1,2,4]triazin-6(7H)-ones, by treatment of toxoflavins and reumycins with 10 % aqueous or ethanolic sodium hydroxide at 5–70°C or reflux, followed by decarboxylation and oxidation by air along with a benzilic acid type rearrangement. Furthermore
本文介绍了一种可靠且简便的合成6-氮杂uri啶酮,1,5-二甲基-1 H-咪唑并[4,5- e ] [1,2,4]三嗪-6(5 H)-ones和5-甲基-5 H-咪唑并[4,5- e ] [1,2,4]三嗪-6(7 H)-一,通过在10-70°C或回流下用10%氢氧化钠或乙醇乙醇溶液处理毒素黄素和瑞霉素,然后通过空气脱羧和氧化以及苯甲酸类型重排。此外,将产生的6-氮杂嘌呤在10%乙醇氢氧化钠中加热,得到具有1-甲基脲的相应的1-甲基-5,6-二氧代-1,4,5,6-四氢-1,2,4-三嗪。还研究了6-氮杂嘌呤类药物对CCRF-HSB-2(人类T细胞急性淋巴母细胞性白血病)和KB(人类口腔表皮样癌)细胞系的抗肿瘤活性,其中某些化合物显示出预期的抗肿瘤活性。