作者:K. C. Murdock、R. G. Child、P. F. Fabio、Robert D. Angier、Roslyn E. Wallace、Frederick E. Durr、R. V. Citarella
DOI:10.1021/jm00195a002
日期:1979.9
The condensation of alkylenediamines with quinizarin or with 2,3-dihydro-1,4,5,8-tetrahydroxy-9,10-anthracenedione, followed by oxidation, gave 1,4-bis[aminoalkyl)amino]-9,10-anthracenediones. Some of these compounds and their 2,3-dihydro derivatives were markedly active against both leukemias and solid tumors in mice. Activity was maximal with 5,8-dihydroxylation and 1,4-bis[(2-aminoethyl)amino] substitution, in which the terminal nitrogen atoms were either unsubstituted (compound 50) or carried 2-hydroxyethyl groups (compound 40), indicating the importance of hydrophilicity. Against B-16 melanoma, 50 gave greater than 433% increase in median life span (ILS) with 7/10 80-day survivors. Against P-388 leukemia, 40 gave greater than 500% ILS with 4/5.60-day survivors; its efficacy and therapeutic index equaled or surpassed those of adriamycin, cyclophosphamide, daunorubicin, methotrexate, or 5-fluorouracil. Against L-1210 leukemia, B-16 melanoma, and colon tumor 26, 40 was generally as effective or more effective than adriamycin and is now undergoing preclinical toxicological evaluation.
Colourimetric and fluorescent detection of oxalate in water by a new macrocycle-based dinuclear nickel complex: a remarkable red shift of the fluorescence band
作者:Md Mhahabubur Rhaman、Frank R. Fronczek、Douglas R. Powell、Md. Alamgir Hossain
DOI:10.1039/c3dt53467g
日期:——
A new macrocycle-based dinuclear nickel chemosensor selectively binds oxalate anions both in solution and the solid state, displaying a remarkable red shift of the fluorescence band with a visible colour change in water at physiological pH in the presence of an external dye.