as selective ligands , [ 3h ] cpp ( 3- ( 2-carboxypyperazine-4-yl ) -propyl-1-phosphonic acid , [ 3h ] ampa ( rs-alpha-amino-3-hydroxy-5-methyl-isoxazole-4-propionic acid ) and [ 3h ] ka ( kainic acid ) were used , respectively .
C0051318
ampa
C0022266
isoxazole