Antitumor agents. II. Bis(guanylhydrazones) of anthracene-9,10-dicarboxaldehydes
摘要:
9,10-Anthracenedicarboxaldehyde bis[(4,5-dihydro-1H-imidazol-2-yl)hydrazone] (bisantrene, VI-1) showed anticancer activity in mice vs. both leukemias and solid tumors. Increases in life span vs. the following neoplasms were: P-388 leukemia, 137%; B-16 melanoma, 122%; Lieberman plasma cell tumor, greater than 85%; colon tumor 26, 150%; Ridgway osteogenic sarcoma, 85%. There were significant numbers of long-term survivors. Both DNA and RNA synthesis were strongly inhibited. The drug was resistant to biodegradation and was bound strongly to tissues; in monkeys the half-life for disappearance from serum was 6 days. Related hydrazones were synthesized, and structure-activity relationships are discussed. Two routes to ring-substituted anthracene-9,10-dicarboxaldehyde intermediates were developed.
A magnetic palladium nickel carbon nanocomposite as a heterogeneous catalyst for the synthesis of distyrylbenzene and biphenyl derivatives
作者:Habiballah Shafie、Khodabakhsh Niknam
DOI:10.1039/d1nj01762d
日期:——
A magnetic palladium nickel carbon (Fe3O4@Pd@Ni/C) nanocomposite has been synthesized using a simple one-pot procedure via a hydrothermal approach. Ferric nitrate, palladium acetate, and nickel nitrate were dissolved in water together with glucose, and the mixture was heated in an autoclave. The Fe3O4@Pd@Ni/C nanocomposite was characterized via XRD, TEM, FE-SEM, VSM, EDS, and XPS studies. The catalytic
磁性钯镍碳(Fe 3 O 4 @Pd@Ni/C)纳米复合材料已通过水热法使用简单的一锅法合成。将硝酸铁、醋酸钯和硝酸镍与葡萄糖一起溶解在水中,并将混合物在高压釜中加热。Fe 3 O 4 @Pd@Ni/C 纳米复合材料通过XRD、TEM、FE-SEM、VSM、EDS 和 XPS 研究进行表征。Fe 3 O 4的催化能力研究了@Pd@Ni/C 纳米复合材料用于合成二苯乙烯基苯和 9,10-二苯乙烯基蒽衍生物。该方法显示出明显的优点,如催化剂的可回收性、实验操作简单、收率良好至极好等。