The first synthesis of podocarflavone A and its analogs and evaluation of their antimycobacterial potential against Mycobacterium tuberculosis with the support of virtual screening
The first synthesis of podocarflavone A and its analogs and evaluation of their antimycobacterial potential against Mycobacterium tuberculosis with the support of virtual screening
Synthesis of 5′-Bromo-2′-Hydroxy-4,4′,6′-TrimetHoxychalcone from Garcinia Nervosa and of its Isomer 3′-Bromo-2′-Hydroxy-4,4′,6′-Trimethoxychalcone
作者:Sulaksha J. Parab、Shubhada G. Kapdi、Chandrakant G. Naik、Shrivallabh P. Kamat
DOI:10.3184/030823410x12754665381128
日期:2010.6
The unambiguous syntheses of the naturally occurring 5′-bromo-2′-hydroxy-4,4′,6′-trimethoxychalcone 1, a constituent of Garcinia nervosa, and its positional isomer 3′-bromo-2′-hydroxy-4,4′,6′-trimethoxychalcone 6 are described.
2,3-Dibromo-2′-hydroxy-3-(2-thienyl)propiophenones, with base, gave mixtures of the corresponding chromone and coumaranone and were readily converted into their 3-alkoxyl derivatives. Chromones were obtained by pyrolysing the dibromides and coumaranones by treatment of the 3-alkoxyl derivatives with aqueous ethanolic alkali.