Figure 3From: Transformation of multi-component ginkgolide into ginkgolide B by Coprinus comatus MS/MS and NMR chromatograms of product. (A) ESI-MS (-) MS spectrum of GA (m/z 408); (B) ESI-MS (-) MS spectrum of GB (m/z 423); (C) the 1H-1H COSY spectra; (D) the 1H-13C HSQC spectra.Back to article page