6305-25-5Relevant academic research and scientific papers
Thermolysis of 2-azido-3-(R-anilino)-1,4-naphthoquinones. Nitrene insertion versus hydrogen abstraction
Cárdenas-Chaparro, Agobardo,Leyva, Elisa,Loredo-Carrillo, Silvia E.,Martínez-Richa, Antonio,Platz, Matthew S.
supporting information, (2020/03/03)
2-chloro-3-(R-anilino)-1,4-naphthoquinones react with sodium azide upon refluxing in DMF. The thermochemistry of 2-azido-3-(R-anilino)-1,4-naphthoquinone is strongly modified by the substituent on aniline. Having an strong electron-donor like O-R results
Synthesis and cytotoxicity of 6,11-Dihydro-pyrido- and 6,11-Dihydro-benzo[2,3-b]phenazine-6,11-dione derivatives
Kim, Young-Shin,Park, Se-Young,Lee, Hyun-Jung,Suh, Myung-Eun,Schollmeyer, Dieter,Lee, Chong-Ock
, p. 1709 - 1714 (2007/10/03)
6,11-Dihydro-pyrido[2,3-b]phenazine-6,11-diones and 6,11-dihydro-benzo[2,3-b]phenazine-6,11-diones were synthesized from 6,7-dichloro-5,8-quinolinedione and 2,3-dichloro-1,4-naphthoquinone. The study on the cytotoxicity on these products revealed that the pyridophenazinediones, tetracyclic heteroquinone analogues with three nitrogen atoms exhibited a high cytotoxicity on several human tumor cell lines. Compound 9c and 9e showed in vitro antitumor activity comparable or superior to doxorubicin against the human ovarian tumor cells (SK-OV-3) and the human CNS cells (XF 498). The IC50 value for compound 9e was 0.06 μM against the human CNS cells (XF 498), which was 2.6 times higher than that (0.16 μM) of doxorubicin. In addition, the X-ray crystallographic analysis of two phenazinedione derivatives (9b,c) showed clearly the exact position of the nucleophilic substitution of 6,7-dichloro-5,8-quinolinedione.
