A new hopane derivative from the lichen Dirinaria applanata

Nguyen, Trong Tuan; Chau, Thanh Nguyen Quoc; Van, Hieu Mai; Quoc, Toan Phan; Phuoc, Qui Do; Nguyen, The Duy; Nguyen, Phuc Dam; Thu, Tram Nguyen Thi; Le, Tien Dung; Xuan, Trang Dai Thi; Kaeko, Kamei; Kenji, Kanaori

doi:10.6084/m9.figshare.9034052.v2

gnpl_a_1644511_sm0620.pdf (3.99 MB)

A new hopane derivative from the lichen Dirinaria applanata

Version 2 2021-03-30, 13:50

Version 1 2019-07-24, 15:16

journal contribution

posted on 2021-03-30, 13:50 authored by Trong Tuan Nguyen, Thanh Nguyen Quoc Chau, Hieu Mai Van, Toan Phan Quoc, Qui Do Phuoc, The Duy Nguyen, Phuc Dam Nguyen, Tram Nguyen Thi Thu, Tien Dung Le, Trang Dai Thi Xuan, Kamei Kaeko, Kanaori Kenji

Chemical investigation of the lichen Dirinaria applanata led to isolate nine compounds including a new hopane derivative, 1β-acetoxy-21α-hopane-3β,22-diol (1) together with six phenolic compounds naming divaricatinic acid (2), methyl divaricatinate (3), methyl-β-orcinolcarboxylate (4), methyl haematommate (5), divarinol (6), ramalinic acid A (7), and two xanthones namely lichenxanthone (8), 4,5-dichlorolichenxanthone (9). Their structures were elucidated by spectroscopic data in combination with published literature. Except compound 2, all compounds were isolated from this species for the first time.