New compounds with hydrophyllic esters of (-)-carinol were synthesized and evaluated as xanthine oxidase enzyme inhibitors and antioxidants. Aliphatic esterfication of C-9,9'-OH groups of (-)-carinol resulted in lowering antioxidant and xanthine oxidase inhibitory activities. However certain aromatic acyl esters considerably improved the xathine oxidase inhibition. Aromatic esterification with electron withdrawing substitutions would preferred for improvement in XOD inhibition while retaining radical scavenging activity, electron withdrawing substitution led to the loss of free radical scavenging property and neutral substituents decrease the enzyme inhibitory potential.
合成并评估了新的带有亲
水酯基的(-)-卡尼醇化合物,作为
黄嘌呤氧化酶
抑制剂和
抗氧化剂。对(-)-卡尼醇的C-9,9'-羟基进行脂肪族酯化会降低其抗氧化和
黄嘌呤氧化酶抑制活性。然而,某些芳香酰酯显著改善了
黄嘌呤氧化酶抑制。带有电子吸引取代基的芳香酯化在提高
黄嘌呤氧化酶抑制的同时能够保留自由基清除活性,而电子吸引取代基则会导致自由基清除特性的丧失,中性取代基则降低了酶的抑制潜力。