The versatile preparation of permethylatedanigopreissin A (1) has been accomplished from methyl 3,5-dihydroxybenzoate. The key steps of the synthesis are sequential Sonogashira and Suzuki cross-couplings for the construction of the 2,3-diarylbenzo[b]furan moiety and Wittig olefination for the introduction of the styryl group.
of seventeen 2, 3-diaryl benzofuran hybrids were designed, synthesized and screened for their anti-tubercular potential against Mycobacterium tuberculosis H37Ra avirulent strain. Out of seventeen, four derivatives showed significant activity against M. tuberculosis H37Ra avirulent strain (ATCC 25177) with MIC value ranging from 12.5 to 50 µg/mL but out of four, one derivative (9E) was significantly active