ABSTRACT
D. anthemidifolia. ACETYLENICS: 5-(4-acetoxy-1-butynyl)-5′-methyl-2,2′-bithiophene, 5-(3,4-diacetoxy1-butynyl)-5′-methyl-2,2′-bithiophene, 5-(4-hydroxy-1-butynyl)-5′-methyl-2,2′- bithiophene, 5-(3-hydroxy-4-isovaleryloxy-1-butynyl)-2,2′-bithiophene 3′-methoxy-2,2′ 5′,2″-terthiophene, 5-methyl-2,2′ 5′,2″-terthiophene.
