Three daphnane diterpenoids from Trigonostemon xyphophylloides

- Trigoxyphins U-W (1-3), together with two known compounds were isolated from Trigonostemon xyphophylloides.
- The structures were elucidated by extensive analysis of the spectroscopic data.
- Compound 3 showed modest cytotoxicity against BEL-7402, SPCA-1 and SGC-7901 cancer cell lines.