THE MECANISMS OF CATECHINS METABOLISM

II. NEUTRAL SUBSTANCES IN THE URINE OF RABBITS ADMINISTERED (+)-CATECHIN

抄録

1. From the urine of rabbits administered (+)-catechin, three neutral substances (F, G and H) were recognized by paper partition chromatography and these substances regarded as intermediary metabolites of catechin.
2. Amoung these three substances, G and H were isolated in crystalline states and their chemical structure were posturated as δ-(3-hydroxyphenyl)-γ-valerolactone and δ-(3, 4-dihydroxyphenyl)--γ-valerolaetone respectively.
The authors are grateful to M. Shido for his kind helps of elemental analysis.