Figure 2
From: 2′-Epi-uscharin from the Latex of Calotropis gigantea with HIF-1 Inhibitory Activity

Key HMBC (H to C), 1H-1H COSY correlations of uscharin (1) and 2′-epi-uscharin (2).
From: 2′-Epi-uscharin from the Latex of Calotropis gigantea with HIF-1 Inhibitory Activity
Key HMBC (H to C), 1H-1H COSY correlations of uscharin (1) and 2′-epi-uscharin (2).