|
|||||
|
|
Application of carbon-13 n.m.r. Spectroscopy to the structural investigation of ezomycins |
|
| Authors: | Kanzo Sakata Jun Uzawa Akira Sakurai |
| Abstract: | Ezomycins A1, A2, B1, B2, C1, C2, D1 and D2, antifungal antibiotics, are anhydrooctose uronic acid nucleosides. Their novel structures were confirmed by studying their natural abundance 13C n.m.r. spectra in detail from gated proton-decoupled, long-range selective proton-decoupled and selective proton-decoupled spectra. The J(CH) value of the anomeric carbon signal (C-1″) supports the β-configuration. |
| Keywords: | |