Diarylalkanoids as Potent Tyrosinase Inhibitors from the Stems of Semecarpus caudata.

Phu Hoang Dang Tho Huu Le Truong Nhat Van Do Hai Xuan Nguyen Mai Thanh Thi Nguyen Nhan Trung Nguyen

Published in: Evidence-based complementary and alternative medicine : eCAM (2021)

From a CHCl3-soluble extract of the stems of Semecarpus caudata (Anacardiaceae), two new diarylalkanoids, semedienone (1) and semetrienone (2), were isolated. Their structures were elucidated based on NMR spectroscopic data interpretation. These compounds possess strong tyrosinase inhibitory activity with the IC50 values of 0.033 and 0.11 μM, respectively. Docking studies of 1 and 2 with oxy-tyrosinase were carried out to analyze their interactions. Accordingly, semedienone (1) showed good interactions with the peroxide group and amino acid residues. The biosynthesis of the isolated diarylalkanoids was proposed.

Keyphrases

amino acid
high resolution
magnetic resonance
molecular docking
molecular dynamics
molecular dynamics simulations
electronic health record
oxidative stress
big data
anti inflammatory
case control
cell wall
mass spectrometry
artificial intelligence