Synthesis and preliminary biological evaluation of β-carotene and retinoic acid oxidation products
作者:E.M. Kithsiri Wijeratne、Manping X. Liu、Narendra B. Kantipudi、Claudia B. Brochini、A.A. Leslie Gunatilaka、Louise M. Canfield
DOI:10.1016/j.bmc.2006.07.057
日期:2006.12
which underwent ready aerial oxidation yielding hitherto unknown oxidation products of retinoic acid identified as methyl 5S*,8S*-epidioxy-9,10beta-epoxy-5,8,9,10-tetrahydroretinoate (14) and methyl 13-cis-5S*,8S*-epidioxy-9,10beta-epoxy-5,8,9,10-tetrahydroretinoate (15). Evaluation of 1, all trans-retinoic acid (8), 13-cis-retinoic acid (9), and the photo-oxygenation products 10-15 in a panel of five
从β-紫罗兰酮开始,分6步合成了β-胡萝卜素氧化产物2,3,2-二氢-5,8-内过氧-β-脱辅基-胡萝卜素-13-(1)。所有反式视黄酸(8)和13-顺式视黄酸(9)的光氧合产生了5S *,8S *-环氧二氧-5,8-二氢视黄酸(10)和13-顺式5S *的混合物,8S *-环氧-5,8-二氢视黄酸(11)。粗制氧合混合物的甲基化分别提供了相应的甲酯12和13,它们都进行了快速的空中氧化,生成了迄今未知的视黄酸氧化产物,鉴定为甲基5S *,8S *-环氧--9,10β-环氧-5,8,9,10-四氢视黄酸酯(14)和13-顺5S *,8S *-环氧乙氧基-9,10beta-环氧-5,8,9,10-四氢视黄酸酯(15)。评估1,所有反式视黄酸(8),13-顺式视黄酸(9),