Caudatin-3-O-β-D-glucopyranosyl-(1-4)-8-D-oleandropyranosyl-(1-4)-β-D-cymaropyranosyl-(1-4)-β-D-cymaropyranoside

ICI-118551 是一种高选择性 β2 肾上腺素能受体拮抗剂，对 β2、β1 和 β3 受体的 Ki 值分别为 0.7、49.5 和 611 nM。

Gynosaponin TN-2 has anti-Parkinsonian activity. Gynosaponin TN-2 exerts protective effects on L-DOPA (100 and 200 μM)-induced apoptotic cell death by modulating extracellular signal-regulated protein kinases 1 and 2 activation in pheochromocytoma 12 cells.