The ether-type glucuronide of p-hydroxybenzoic acid was isolated as methylacetyl derivative from the urine of rabbits receiving methyl p-hydroxybenzoate and its structure was established as methyl (p-methoxycarbonylphenyl 2, 3, 4-tri-O-acetyl-β-D-glucopyranosid)-uronate with the synthetic sample. Ester-type glucuronide was detected in the urine by paper chromatography.
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Tsukamoto et al. (1960) studied this question.