Journal of Chemistry (Jan 2022)

Tinctoride A, a New Hopan-Type Triterpenoic Peracid from the Thallus of Lichen Parmotrema Tinctorum (Despr. ex Nyl.) Hale

  • Le-Thuy-Thuy-Trang Hoang,
  • Thanh-Nha Tran,
  • Thi-Phi-Giao Vo,
  • Hoang-Vinh-Truong Phan,
  • Phan-Si-Nguyen Dong,
  • Dinh-Tri Mai,
  • Ngoc-An Nguyen,
  • Thi-Minh-Suong Huynh,
  • Hong Truong Luu,
  • Tien-Dung Le,
  • Minh-Trung Dao,
  • Van-Kieu Nguyen

DOI
https://doi.org/10.1155/2022/9092098
Journal volume & issue
Vol. 2022

Abstract

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A new hopan-type triterpenoic peracid, tinctoride A (1), together with three known compounds, zeorin (2), 6β,22-dihydroxyhopane (3), and ergosterol peroxide (4), was isolated from Parmotrema tinctorum (Despr. ex Nyl.) Hale. Their chemical structures were identified by extensive 1D and 2D NMR analysis and high-resolution mass spectroscopy and compared with those reported in the literature. The enzyme inhibitory potential of compounds 1–3 against α-glucosidase was investigated, exhibiting nil to weak inhibitory activity.