412339-32-3Relevant academic research and scientific papers
Xanthones in heterocyclic synthesis. An efficient route for the synthesis of C-3 o-Hydroxyaryl substituted 1, 2-benzisoxazoles and their N-oxides, potential scaffolds for angiotensin(II) antagonist hybrid peptides
Gardikis, Yiannis,Tsoungas, Petros G.,Potamitis, Constantinos,Zervou, Maria,Cordopatis, Paul
scheme or table, p. 1077 - 1091 (2011/06/19)
Regioselective substitution of xanthone and its nucleophilic cleavage allow the synthesis of C-3 ohydroxyaryl substituted 1, 2-benzisoxazoles or their V-oxides by cyclodehydration or oxidative cyclization of their corresponding ketoxime precursors, respectively. Molecular modeling analysis and 1H NMR spectra indicate an intramolecular H-bonding engaging phenol OH and the isoxazole ring N atom. The Japan Institute of Heterocyclic Chemistry.
Xanthone in synthesis: a reactivity profile via directed lithiation of its dimethyl ketal
Odrowaz-Sypniewski, Michal R.,Tsoungas, Petros G.,Varvounis, George,Cordopatis, Paul
body text, p. 5981 - 5983 (2010/02/28)
Xanthone, as its dimethyl ketal, undergoes functionalization with a synthetically useful degree of regioselectivity using a lithiation protocol. The core structure is regenerated during the work-up. Monosubstitution at C-4 or C-1 and disubstitution at C-4
Potential antitumor agents. 60. Relationships between structure and in vivo colon 38 activity for 5-substituted 9-oxoxanthene-4-acetic acids
Atwell,Rewcastle,Baguley,Denny
, p. 1375 - 1379 (2007/10/02)
9-Oxoxanthene-4-acetic acids are a class of antitumor agents effective against the mouse colon adenocarcinoma 38 in vivo. Within this class, a series of derivatives bearing a wide variety of substituents at the 5-position have been prepared and evaluated.
