| 摘要 |
The invention provides compounds having a spiro heterocyclic unit connected through a linker of a certain length to another spiro cycle, an imidazole ring or an amide group. Some of these compounds have been obtained from Aplysinia cavernicola and a mixture of Aplysina fulva and Oceanapia. The compounds exhibit VDCC blocker activity; some also show acetylcholinesterase and butyrylcholinesterase inhibition activities. Therefore they are useful in the treatment of cognitive and neurodegenerative disorders, such as brain ischemia, stroke, cognitive disorders as senile dementia, cerebrovascular dementia, mild recognition impairment, attention deficit disorder, and/or neurodegenerative dementing disease with aberrant protein aggregations as specially Alzheimers's disease or condition, or prion disease as Creutzfeld-Jakob disease or Gerstmann-Straussler-Scheinker disease.
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