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Nguyen, Trong Tuan; Nguyen Quoc Chau, Thanh; Mai Van, Hieu; Phan Quoc, Toan; Do Phuoc, Qui; Nguyen, The Duy; Nguyen, Phuc Dam; Nguyen Thi Thu, Tram; Le, Tien Dung; Dai Thi Xuan, Trang; Kaeko, Kamei; Kenji, Kanaori
Natural product research, 04/2021, Letnik: 35, Številka: 7Journal Article
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.
