Abstract
1. The ester glucuronide of p-aminosalicylic acid was isolated from the urine of rabbits administered with p-aminosalicylic acid. The methyl acetyl derivative of this compound was identified with synthetic methyl (2-acetoxybenzoyl-4-acetamido-2, 3, 4-tri-O-acetyl-β-D-glucopyranosid) uronate. 2. The ester glucuronide of salicylic acid was isolated as methyl (2-acetoxybenzoyl-2, 3, 4-tri-O-acetyl-β-D-glucopyranosid) uronate from the urine of rabbits administered with salicylic acid, and the structure was confirmed with the synthetic compound.
