CARBAMATE DERIVATIVES OF 4-AMINO-3- ISOXAZOLIDINONES, 3-AMINO-1- HYDROXYPYRROLIDIN-2-ONES AND 1-AMINO-1- CYCLOPROPANECARBOXYLIC ACID ANALOGS, A PROCESS FOR THEIR PREPARATION AND THEIR USE AS MEDICAMENTS

摘要

Carbamate Derivatives of 4-Amino-3-isoxazolidinones,3-Amino-1-hydroxypyrrolidin-2-ones and 1-Amino-1-cyclopropanecarboxylic acidanalogs, a process for their preparation and their use as medicaments(see formula I)where R1 is(see formulas II, III or IV)and R2 is(see formulas V, VI or VII)and to a process for their preparation. The compounds areuseful for alleviating various memory dysfunctionscharacterized by a cholinergic deficit such as Alzheimer'sdisease.