Glochidiolide, Isoglochidiolide, Acuminaminoside, and Glochidacuminosides A-D from the Leaves of Glochidion acuminatum MUELL

摘要

The dimeric butenolides glochidiolide and isoglochidiolide, a new glucoside of a nitrogen-containing C_8 dimer, acuminaminoside, and glucosides of C_8 compounds, designated glochidacuminosides A-D, were isolated from the leaves of Glochidion acuminatum. The structures of glochidionolactone and acuminaminoside were determined by X-ray analyses, and those of the remaining C_8 glucosides by NMR spectroscopic analyses, chemical conversion, and a modified Mosher's method.