“…Bavachin 1 and isobavachin 2 were synthesized using 2,4-dihydroxyacetophenone 5a as the starting material, which was prenylated with 3,3-dimethylallyl bromide, to furnish 6a and 6b, according to the reported method [13]. Compound 6c was achieved by treating 2,4,6-trihydroxyacetophenone 5c with 3,3-dimethylallyl bromide, according to the approach in the literature [22]. Selective methoxymethylation of 6a, 6b, and 6c with chloromethoxylmethyl ether and anhydrous K 2 CO 3 in dry acetone gave compounds 7a, 7b, and 7c, respectively.…”