3''-O-Galloylmyricitrin is a natural product.

Methyl pseudolarate A is a diterpenoid compound that exerts its antitumor activity by inhibiting cell proliferation and inducing apoptosis.

2,5-Dihydroxy-4-methoxyacetophenone (compounds 3) can be isolated from the 80% methanol extract of roots of Cynanchum paniculatum Kitagawa. 2,5-Dihydroxy-4-methoxyacetophenone inhibits glutamate-induced cytotoxicity in hippocampal HT22 cell line.