Author/Authors :
Jain، نويسنده , , Shreyans K. and Meena، نويسنده , , Samdarshi and Qazi، نويسنده , , Asif K. and Hussain، نويسنده , , Aashiq and Bhola، نويسنده , , Sunil K. and Kshirsagar، نويسنده , , Rajendra and Pari، نويسنده , , Koteppa and Khajuria، نويسنده , , Anamika and Hamid، نويسنده , , Abid and Shaanker، نويسنده , , R. Uma and Bharate، نويسنده , , Sandip B. and Vishwakarma، نويسنده , , Ram A.، نويسنده ,
Abstract :
The chromone alkaloid dysoline (1), a new regioisomer of rohitukine (2) along with rohitukine and rohitukine-N-oxide (3) were isolated from the stem barks of Dysoxylum binectariferum. The structure of dysoline (1) was determined by extensive 2D-NMR studies and the absolute configuration was established by NOESY and CD spectra. Dysoline (1) consisted of a 5,7-dihydroxy-2-methylchromone nucleus substituted with a 2′-hydroxylated N-Me piperidine ring at the C-6 position. Dysoline differs from rohitukine by the position of the piperidine ring on the chromone nucleus. Dysoline displayed promising cytotoxicity in HT1080 fibrosarcoma cells with an IC50 of 0.21 μM, and also displayed significant inhibition of proinflammatory cytokines TNF-α and IL-6.
Keywords :
Dysoline , Dysoxylum binectariferum , Chromone alkaloid , Anti-inflammatory , cytotoxicity
