A compound of formula (II): ##STR1## in which R is a hydrogen atom or a carboxy, alkoxycarbonyl, --CO--NR.sub.4 R.sub.5, --PO.sub.3 H.sub.2 or --CH.sub.2 OH radical, and R.sub.1 is an -alk-NH.sub.2, -alk-NH--CO--R.sub.3, -alk-COOR.sub.4, -alk-CO--NR.sub.5 R.sub.6 or --CO--NH--R.sub.7 radical. The compounds of formula (II) can be used to prepare compounds of formula (I): ##STR2## in which R and R.sub.1 have the same meanings as above. The compounds of formula (I) have valuable pharmacological properties and are antagonists of the .alpha.-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor, also known as the quisqualate receptor. The compounds of formula (I) are also non-competitive antagonists of the N-methyl-D-aspartate (NMDA) receptor and more specifically are ligands for NMDA receptor glycine modulator sites.
式(II)的化合物:##
STR1## 其中R是
氢原子或羧基,烷
氧羰基,--CO--NR.sub.4 R.sub.5,--PO.sub.3 H.sub.2或--CH.sub.2 OH基团,而R.sub.1是-烷基-NH.sub.2,-烷基-NH--CO--R.sub.3,-烷基-COOR.sub.4,-烷基-CO--NR.sub.5 R.sub.6或--CO--NH--R.sub.7基团。式(II)的化合物可用于制备式(I)的化合物:##
STR2## 其中R和R.sub.1与上述含义相同。式(I)的化合物具有有价值的药理学特性,并且是α-
氨基-3-羟基-5-
甲基-4-
异恶唑丙酸(
AMPA)受体的
拮抗剂,也称为石菜酸受体。式(I)的化合物也是N-
甲基-
D-天门冬氨酸(N
MDA)受体的非竞争性
拮抗剂,更具体地说是N
MDA受体甘
氨酸调节剂位点的
配体。