TitleTwo new substituted polychiral 5, 6-dihydro-alpha-pyrones from Orthosiphon diffusus and molecular docking studies
Publication TypeJournal Article
Year of Publication2017
AuthorsHolla H, Sharma A, Bhat P, Shinde D, Das B
Pagination 21-26
Date Published12/2017

Chemical investigation on Orthosiphon diffusus lead to isolation of two new substituted polychiral 5, 6-dihydro-alpha-pyrones, orthodiffenes E-F (5-6) which were characterized from the detailed studies of their 1D and 2D NMR spectra. Isolated molecules orthodiffenes E-F (5-6) along with previously isolated, reported orthodiffene A-D (14) molecules were subjected to in silico studies and analysed for anticancer target Topoisomerse I-B - DNA complex. Orthodiffene D and E are giving noteworthy observations while all isolated molecules are showing a pattern of binding in active pocket similar to each other however, different from Camptothecin, an anticancer agent. Orthodiffene A-C have comparable cytotoxicity to Camptothecin, which we have earlier reported.