Fig. 1From: Laccase-catalyzed derivatization of 6-aminopenicillanic, 7-aminocephalosporanic and 7-aminodesacetoxycephalosporanic acid2,5-Dihydroxybenzoic acid derivatives (1a R1 = NH(CH2)2OH and 1b R1 = OOCH3), 6-aminopenicillanic acid (2a) and the products 3a (R1 = NH(CH2)2OH) and 3b (R1 = OOCH3)Back to article page