HMR-1426 is gastric emptying inhibitor. HMR1426 shows an anorectic potential in rats and decreased body weight and fat mass. This was achieved solely by reducing food intake without influencing overall energy expenditure or behavior.
DSR-141562 is a new compound that can be taken orally and has a specific ability to inhibit phosphodiesterase 1 (PDE1) in the brain. This compound exhibits a preference for inhibiting human PDE1B, with an IC50 value of 43.9 nM. It also shows moderate inhibition of human PDE1A (IC50 = 97.6 nM) and PDE1C (IC50 = 431.8 nM). DSR-141562 is particularly useful in the study of positive symptoms, negative symptoms, and cognitive impairments associated with schizophrenia.
R1498 is an inhibitor of cyclin-dependent kinase 2. It also acts by targeting angiogenesis and mitosis pathways. It is well-tolerated and orally active for hepatocellular carcinoma and gastric cancer treatment.