53967-72-9Relevant articles and documents
3-Hydroxy-2,6-dinitroacetophenone: an Unusual Substitution Pattern Resulting from Nitration of 3-Hydroxyacetophenone
Cristiano, M. Lurdes S.,Johnstone, Robert A. W.,Pratt, Michael J.
, p. 2581 - 2583 (1995)
Nitration of 3-hydroxyacetophenone gives 2,6-dinitro-3-hydroxyacetophenone, C8H6N2O6, in which the nitro groups have entered the sterically least favourable positions in the aromatic nucleus.None of the expected substitution in the 4-position was observed.The two nitro groups flanking the carbonyl side chain are different in that one is in the plane of the aryl ring but the other is twisted well out of the plane.
Topoisomerase I-mediated antiproliferative activity of 10-substituted and 12-substituted homocamptothecins
Guo, Wei,Liu, Wenfeng,Zhu, Lingjian,Zhang, Yongqiang,Cheng, Pengfei,Dong, Guoqiang,Zhuang, Chunlin,Yao, Jianzhong,Sheng, Chunquan,Miao, Zhenyuan,Zhang, Wannian
experimental part, p. 1539 - 1549 (2011/11/05)
Homocamptothecin (hCPT) is an E-ring modified camptothecin (CPT) analogue, which showed pronounced inhibitory activity of topoisomerase I. In search of novel hCPT-type anticancer agents, two series of hCPT derivatives were synthesized and evaluated in vitro against three human tumor cell lines. The results indicated that the 10-substituted hCPT derivatives had a considerably higher cytotoxic activity than the 12-substituted ones. Among the 10-substituted compounds, 8a, 8b, 9b, and 9i showed an equivalent or even more potent activity than the positive control drug topotecan against the lung cancer cell line A-549. Moreover, the hCPT analogues 8a and 8b exhibited a higher topoisomerase I inhibitory activity than CPT at a concentration of 100 μM. Copyright
Novel human lens metabolites from normal and cataractous human lenses
Mizdrak, Jasminka,Hains, Peter G.,Kalinowski, Danuta,Truscott, Roger J.W.,Davies, Michael J.,Jamie, Joanne F.
, p. 4990 - 4999 (2008/02/01)
4-(2-Aminophenyl)-4-oxobutanoic acid, 4-(2-amino-3-hydroxyphenyl)-4-oxobutanoic acid and glutathionyl-kynurenine have been identified as novel metabolites in normal and cataractous human lenses following total synthesis and comparison with authentic human