https://repository.kopri.re.kr/handle/201206/5148 2026-05-02T13:20:30Z https://repository.kopri.re.kr/handle/201206/9528 Title: Chemical constituents from the Antarctic lichen, Stereocaulon caespitosum Authors: Youn, Ui Joung; Yim, Joung Han; Kim, Il-Chan; Park, Hyun; Han, Se Jong; Kim, Ji Hee; So, Jae Eun Abstract: A phytochemical study of the methanol extract of the Antarctic lichen Stereocaulon caespitosum Redgr. led to the isolation of a tridepside (1), two depsides (2 and 3), a montagnetol derivative (4), and four mono-phenolic compounds (5？8). The structures of these compounds were confirmed by 1D- and 2D- nuclear magnetic resonance (NMR) experiments, as well as by comparison with published values. This is the first phytochemical study of S. caespitosum. In particular, compounds 1, 3, 4, and 8 have been isolated for the first time from the genus Stereocaulon and the family Stereocaulaceae. The chemotaxonomic significance of the isolated compounds is discussed. 2018-10-01T00:00:00Z https://repository.kopri.re.kr/handle/201206/11993 Title: Study of bioactive metabolites for cancer cells from polar lichen Authors: Youn, Ui Joung 2018-05-31T00:00:00Z