259667-87-3Relevant articles and documents
Oxindole derivatives as orally active potent growth hormone secretagogues
Tokunaga,Hume,Umezome,Okazaki,Ueki,Kumagai,Hourai,Nagamine,Seki,Taiji,Noguchi,Nagata
, p. 4641 - 4649 (2007/10/03)
A series of substituted oxindole derivatives was synthesized and evaluated for growth hormone (GH) releasing activity using cultured rat pituitary cells. (+)-6-Carbamoyl-3-(2-chlorophenyl)-(2-diethylaminoethyl)- 4-trifluoromethyloxindole (SM-130686, 37S) was found to have potent activity (EC50 = 3.0 nM), while the other enantiomer 37R had reduced activity. The absolute configuration of 37S was confirmed by X-ray crystallographic analysis. Compound 37S showed a good pharmacokinetic profile in rats with 28% oral bioavailability at 10 mg/kg and excellent in vivo activity as evidenced by a significant weight gain after 4 days of oral administration at 10 mg/kg twice a day. Compound 37S displaced the binding of 35S-MK-677 to human GHS-R with an IC50 value of 1.2 ± 0.2 nM.