20(s)-propanaxadiol

20(S)-Hydroxycholesterol (20α-Hydroxycholesterol) is an allosteric activator of the oncoprotein smoothened (Smo).

20(S)-Ginsenoside Rg3 (Rg3) possess an ability to inhibit the lung metastasis of tumor cells via inhibition of the adhesion and invasion of tumor cells. It inhibits the proliferation of human umbilical vein endothelial cells(HUVEC) and has anti-angiogenesis activities.

20(S),24(R)-Ocotillol, a natural product, is characterized by a unique structure featuring specific stereoisomers denoted by (S) at carbon 20 and (R) at carbon 24.