Seven second-generation hypoxic markers of the iodinated azomycin nucleoside class have been synthesized and tested for hypoxia marking activity with tumor cells in vitro and in vivo. β-D-lodoazomycin galactoside (IAZG) and β-D-iodoazomycin xylopyranoside (IAZXP) demonstrated superior hypoxia marking properties relative to IAZA because of their higher water solubilities, rapid plasma clearance rates
作者:Masakazu Sakaguchi、Matthew W. Webb、Krishna C. Agrawal
DOI:10.1021/jm00353a013
日期:1982.11
A series of 2-nitroimidazole nucleoside analogues has been synthesized as potentialradiosensitizers in an effort to reduce neurotoxicity and increase therapeutic efficacy. The 2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl and glucothiopyranosyl analogues of 2-nitroimidazole were synthesized by condensation in the presence of stannic chloride and mercuric cyanide. The deacetylation of these esters was
Hypoxia-Selective Antitumor Agents. 10. Bis(nitroimidazoles) and Related Bis(nitroheterocycles): Development of Derivatives with Higher Rates of Metabolic Activation under Hypoxia and Improved Aqueous Solubility
作者:Michael P. Hay、Ho H. Lee、William R. Wilson、Peter B. Roberts、William A. Denny
DOI:10.1021/jm00011a013
日期:1995.5
analogues could not be prepared by direct reduction of precursor amides such as 4 and were most conveniently synthesized by aza-Wittig condensation of the appropriate azide and aldehyde components. The amine-linked compounds were more cytotoxic than 4, with the symmetrical bis(2-nitroimidazole) derivatives (13 and 14) up to 9-fold more potent. They showed hypoxic selectivities comparable to that of 4 (ca