New antifungal bithienylacetylenes from Blumea obliqua

Two new bioactive bithienylacetylenes isolated from Blumea obliqua have been characterized as 5'-methyl-5-[4-(3-methyl-1-oxobutoxy)-1-butynyl]-2,2'- bithiophene [1] and 5'-hydroxymethyl-5-[butyl-3-en-1-yn]-2,2'-bithiophene isovaleroxy ester [2], respectively. Compounds 1 and 2 showed antifungal activity against Epidermophyton floccosum and Pleurotus ostreatus.