Isolation, Purification and Characterization of Vinblastine and Vincristine from Endophytic Fungus Fusarium oxysporum Isolated from Catharanthus roseus
Figure 6
(a) 400 MHz 1H NMR spectra of fungal vinblastine (A) and standard vinblastine sulphate (B). The signals marked with ‘s’ is coming from the residual solvent (CHCl3). The signals marked with * and x are due to water (from the solvent) and contamination form n- hexane, respectively. The broad signal marked ú′ at ∼6 ppm in A is an unidentified impurity. (b) 500 MHz 1H NMR spectra of fungal vincristine (A) and standard vincristine sulphate (B). The signals marked with ‘s’ are coming from the residual solvent (Methanol-d4). The signals marked with * and x are due to contamination from trace amounts of n-hexane and ethanol, respectively.