1-(2-羟基-2-甲基丙氧基)-2,2,6,6-四甲基哌啶-4-醇 、
5-Methoxycarbonyl2-[2-hydroxy-3-(4-chloro-α,α-dimethylbenzyl)-5-tert-butyl-phenyl]-2H-benzotriazole 以The title compound is obtained in a yield of 2.26 g (40.2%) as a yellow solid, melting at 80-90° C., whose structure的产率得到5-[1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethylpiperidin-4-yloxy-carbonyl]-2-[2-hydroxy-3-(4-chloro-α,α-dimethylbenzyl)-5-tert-butylphenyl]-2H-benzo-triazole