SYNTHETIC EXCITATORY AMINO ACIDS, PREPARATION METHOD THEREOF AND PHARMACEUTICAL COMPOSITIONS CONTAINING SAME

摘要

The compounds have the formula (I) wherein: X is (CH2)n; R2 is CO2R4 and R3 is hydrogen, or R2 is hydrogen and R3 is CO2R4; R1 and R4 are independently hydrogen, C1-C10 alkyl, C2-C10 alkenyl, aryl, or arylalkyl; and n is 1; or a pharmaceutically-acceptable salt thereof; preparation method thereof; intermediates for their preparation; and pharmaceutical compositions containing the same.