发明名称 |
Spiro derivatives, process for their preparation and medications containing same |
摘要 |
The invention relates to new derivatives of spiro compounds represented by the general formula (I) <IMAGE> (I) wherein R is a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group; R1 and R2 represent a hydrogen atom or an alkyl group or together form a nitrogen-containing heterocyclic ring; A is a >CH2 group or a >CO group; n is 4 or 5. These compounds can be prepared from beta -hydroxyacids by intramolecular rearrangement by the action of a strong acid, in order to form a gamma -spirolactone which is converted into an alpha -carboxy gamma -spirolactone to form the compounds of formula (I) using a Mannich reaction. As necessary, a reduction is then carried out. These compounds are useful medically, in particular, as an antidepressant, a stimulant, and a neuroleptic.
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申请公布号 |
US4371538(A) |
申请公布日期 |
1983.02.01 |
申请号 |
US19800195692 |
申请日期 |
1980.10.09 |
申请人 |
ETABLISSEMENTS NATIVELLE S.A. |
发明人 |
TSATSAS, GEORGES;COSTAKIS, EVAN E.;FOSCOLOS, GEORGES V. |
分类号 |
A61K31/34;A61K31/445;A61P25/04;A61P25/24;A61P25/26;C07D307/94;(IPC1-7):A61K31/44 |
主分类号 |
A61K31/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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