König W A, Krause R, Loeffler W, Schanz D
J Antibiot (Tokyo). 1980 Nov;33(11):1270-3. doi: 10.7164/antibiotics.33.1270.
Ethericin B(Ia) was isolated together with ethericin A1) from fermentations of Aspergillus funiculosus Tü 680. The structure of ethericin B was established as 4-carbethoxy-5,5'-dihydro-xy-3,3'-dimethyl-diphenyl ether by chemical degradation, mass spectrometry, 1H-NMR and comparison with synthetic 4-carbethoxy-5,5'-dimethoxy-3,3'-dimethyl-diphenyl ether.
