Prodrugs of 3-(3,4-dichlorobenzyloxy)-2-amino-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid (MGS0039): A potent and orally active group II mGluR antagonist with antidepressant-like potential
作者:Akito Yasuhara、Masato Nakamura、Kazunari Sakagami、Toshiharu Shimazaki、Ryoko Yoshikawa、Shigeyuki Chaki、Hiroshi Ohta、Atsuro Nakazato
DOI:10.1016/j.bmc.2006.01.060
日期:2006.6
these compounds, 6-alkyl esters exhibited approximately 10-fold higher concentrations of 5 in the plasma and brain of rats after oral administration (e.g., ethyl ester of 5; plasma, Cmax=20.7+/-1.3 microM) compared to oral administration of 5 (plasma, Cmax=2.46+/-0.62 microM). 3-(3,4-Dichlorobenzyloxy)-2-amino-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid 6-heptyl ester (7ao), a prodrug of MGS0039
3-(3,4-二氯苄氧基)-2-氨基-6-氟双环[3.1.0]己烷-2,6-二羧酸5(MGS0039)是一种高选择性且有效的II类代谢型谷氨酸受体(mGluR)拮抗剂( mGluR2的拮抗剂活性; IC50 = 20.0 nM,mGluR3; IC50 = 24.0 nM),在口服(10 ng / mL)血浆(492 ng / mL)和脑(13.2 ng / g)中均检测到[J]。中 Chem.2004,47,4750],但5的口服生物利用度为10.9%。为了提高5的口服生物利用度,通过在双环[3.1.0]己烷环的C6位上的羧基酯化发现了5的前药。在这些化合物中,口服后6-烷基酯在大鼠血浆和脑中的血浆中5的浓度大约高出10倍(例如,乙酯为5;血浆,Cmax = 20.7 +/- 1.3 microM)的5(等离子,Cmax = 2.46 +/- 0.62 microM)。MGS0039的前药3-(3