Compounds of the formula (I) in which: R
1
is (CH
2
)
n
Y; n is 1 or 2; Y is NHSO
2
R
2
or X
1
—W—X
2
—R
3
; X
1
is O or NH; W is C═O, C═S, C═NH, or SO
2
; X
2
is O or NH, provided that X
1
and X
2
are not both O; R
2
is C
1-10
alkyl; C
2-10
alkenyl; C
2-10
alkynyl; aryl; aryl-C
1-10
alkyl; aryl-C
2-10
alkenyl; aryl-C
2-10
alkynyl; C
3-8
cycloalkyl or C
3-8
-cycloalkyl-C
1-10
alkyl; and R
3
is hydrogen, C
1-10
alkyl; C
2-10
alkenyl; C
2-10
alkynyl; aryl; aryl-C
1-10
alkyl; aryl-C
2-10
alkenyl; aryl-C
2-10
alkynyl; C
3-8
cycloalkyl; or C
3-8
-cycloalkyl-C
1-10
alkyl; or a salt or ester thereof, modulate metabotropic glutamate receptor function and are useful in treating disorders of the central nervous system.
式(I)的化合物中:R1为(
CH2)nY;n为1或2;Y为NHSO2R2或X1—W—X2—R3;X1为O或NH;W为C═O、C═S、C═NH或SO2;X2为O或NH,但X1和X2不能同时为O;R2为C1-10烷基、C2-10
烯基、C2-10炔基、芳基、芳基-C1-10烷基、芳基-C2-10
烯基、芳基-C2-10炔基、C3-8
环烷基或C3-8-
环烷基-C1-10烷基;R3为
氢、C1-10烷基、C2-10
烯基、C2-10炔基、芳基、芳基-C1-10烷基、芳基-C2-10
烯基、芳基-C2-10炔基、C3-8
环烷基或C3-8-
环烷基-C1-10烷基;或其盐或
酯,可调节代谢型谷
氨酸受体功能,并可用于治疗中枢神经系统疾病。