Resorcinol alkyl glucosides 7–12 were developed as novel tyrosinase inhibitors based on the structure of rhododendrin. These were synthesized from 2,4-dibenzyloxybenzaldehyde using either the Wittig or the Horner-Wadsworth-Emmons reaction with Koenigs-Knorr glycosylation as key steps. The tyrosinase inhibitory activity of 7–12 increased with the length of the alkyl spacer between resorcinol and glucose
Chemical synthesis and tyrosinase inhibitory activity of resorcinol alkyl glucosides, hydroxyalkyl resorcinols, and alkyl resorcinols
作者:Wakana Ishioka、Ken-ichi Nihei
DOI:10.1016/j.molstruc.2022.133668
日期:2022.11
length of the alkyl chain. The gap in the activities between the C2 and C3 analogs was decreased in the order: resorcinol alkyl glucosides>hydroxyalkyl resorcinols>alkyl resorcinols. It indicates that the sugar and hydroxy groups interfered in the functions when they were adjacent to the resorcinol ring. C14 analog 22 (IC50 = 0.81 µM) with the poor water solubility showed slightly weak activity compared