Aromatic butenolides produced by a soil ascomycete Auxarthron sp. KCB15F070 derived from a volcanic island = 제주 곶자왈 토양 곰팡이 유래 신규 물질
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Title
Aromatic butenolides produced by a soil ascomycete Auxarthron sp. KCB15F070 derived from a volcanic island = 제주 곶자왈 토양 곰팡이 유래 신규 물질
Author(s)
Jong Won Kim; Sangkeun Son; Gil Soo Kim; J Otaka; Y Miura; A Muranaka; M Uchiyama; Jung-Sook Lee; Mina Jang; Sung-Kyun Ko; S Takahashi; H Osada; Jae-Hyuk Jang; Jong Seog Ahn
Bibliographic Citation
Tetrahedron Letters, vol. 60, no. 45, pp. 151227-151227
Publication Year
2019
Abstract
LC/MS-based chemical screening of fungal extract fraction library led to identification of three 2,3-aryl substituted furanone metabolites (1?3), including one known butenolide glycoside (1) whose stereochemistry remained unsolved and two new compounds gotjawaside and gotjawalide (2 and 3), from Auxarthron sp. KCB15F070, a fungus isolated from a soil sample of the volcanic island Jeju, Korea. Their planar structures were elucidated by 1D- and 2D-NMR spectroscopic and HRESIMS spectrometric techniques, and the absolute configurations of three compounds were solved using a combination of chemical derivatizations and computational analysis of vibrational circular dichroism (VCD) spectra.