Figure 3

The proposed fragmentation pathways of 14-hydroxy-2-isobutyrylhetisine N-oxide
(a), schaftoside (b) and Licorice saponin A3 (c and d).

The proposed fragmentation pathways of 14-hydroxy-2-isobutyrylhetisine N-oxide
(a), schaftoside (b) and Licorice saponin A3 (c and d).