Gymnoascolides A−C: Aromatic Butenolides from an Australian Isolate of the Soil Ascomycete Gymnoascus reessii

Ben Clark, Robert J. Capon, Ernest Lacey, Shaun Tennant, Jennifer H. Gill, Benjamin Bulheller, and Gerhard Bringmann

Journal of Natural Products, 2005, 68, 1226-1230.

Publication Date: July 22, 2005

Abstract:

Three new aromatic butenolides, gymnoascolides A−C (1−3), have been isolated from the Australian soil ascomycete Gymnoascus reessii and assigned structures on the basis of detailed spectroscopic analysis. The absolute configurations of gymnoascolides B (2) and C (3) at C-5 were solved using a combination of chemical derivatization and quantum chemical simulations.

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