A pyrone, naphthoquinone, and cyclic urea from the marine-derived fungus Astrosphaeriella nypae BCC 5335

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• 作者：Supichar Chokpaiboon^a ; Panida Unagul^b ; Surisa Kongthong^b ; Kannawat Danwisetkanjana^b ; Apiradee Pilantanapak^c ; Satinee Suetrong^b ; Taridaporn Bunyapaiboonsri^b ; ^{taridaporn@biotec.or.th" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Marine-derived fungus ; Astrosphaeriella nypae ; Pyrone ; Naphthoquinone ; Cyclic urea
• 刊名：Tetrahedron Letters
• 出版年：2016
• 出版时间：9 March 2016
• 年：2016
• 卷：57
• 期：10
• 页码：1171-1173
• 全文大小：388 K

文摘

The novel compounds, astronypyrone, astronyquinone, and astronyurea, together with three known compounds, xestodecalactone A, ent-coryoctalactone B, and dimethoxy-O-methylpulvinone were isolated from the marine-derived fungus Astrosphaeriella nypae BCC 5335. Their structures were elucidated on the basis of NMR spectroscopy and mass spectrometry data. Astronypyrone possesses a 2-pyrone derivative fused with a tetrahydrofuran moiety via a dihydropyran unit, while the 2-pyrone ring is substituted by a naphthoquinone skeleton in astronyquinone.