
TY  - JOUR
A1  - Elix, JA 
A1  - Elix, JA 
A1  - Venables, DA 
A1  - Venables, DA 
A1  - Wedin, M 
A1  - Wedin, M 
T1  - New Dibenzofurans and Depsides From the Lichen <I>Bunodophoron patagonicum</I>
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1994
VL  - 47
IS  - 7
SP  - 1335
EP  - 1344
KW  - 
UR  - https://doi.org/10.1071/CH9941335 
N2  - The lichen Bunodophoron patagonicum has been shown to contain five new dibenzo -furans: ascomatic acid (3,7-dimethoxy-1,9-dimethyldibenzofuran-2-carboxylic acid) (2) and the corresponding methyl ester (3); 7-O-methylnorascomatic acid (3-hydroxy-7-methoxy-1,9-dimethyldibenzofuran-2-carboxylic acid) (4) and the corresponding methyl ester (5); and norascomatic acid (3,7-dihydroxy-1,9-dimethyldibenzofuran-2-carboxylic acid) (6). The lichen also contains two new depsides : patagonic acid [2-hydroxy-4-(2&#8242;-hydroxy-4&#8242;-methoxy-6&#8242;-methyl-benzoyloxy)-6-(2&#8242;-oxononyl)benzoic acid] (10) and isopatagonic acid [2-hydroxy-4-(2&#8242;-hydroxy-4&#8242;-methoxy-6&#8242;-(2&#8242;-oxononyl) benzoyloxy )-6-methylbenzoic acid] (11). The structure of all new natural products was confirmed by total synthesis. 
ER  -

