Figure 6.

Chemical structures of (a) resveratrol and the stilbenes and stilbene glycosides identified in Tasmannia lanceolata extracts: (b) piceid, (c) combretastatin A-1, (d) combretastatin A-4. (b1-b5) represent the molecular weight fragments of piceid detected by ESI-MS in positive mode; (c1-c2) represent the molecular weight fragments of combretastatin A-1 detected by ESI-MS in positive mode; (d1-d2) represent the molecular weight fragments of combretastatin A-4 detected by ESI-MS in positive mode