Adenosine dialdehyde is a purine nucleoside analogue. Adenosine dialdehyde is a potent inhibitor of S-Adenosylhomocysteine hydrolase (SAHH) (Ki=3.3 nM). Adenosine Dialdehyde exhibits potent anti-tumor activity in vivo.

3-Morpholino-1-(4-(2-oxopiperidin-1-yl)phenyl)-5,6-dihydropyridin-2(1H)-one shows antitumor activity in a human colon cancer cell line and may be used to combat thrombosis.

BIBB 515 is a selective and potent inhibitor of OSC in vivo with an ED50 value of 0.2-0.5 and 0.36-33.3 mg/kg in rats and mice, respectively.