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US5500444A Cardioprotective tocopherol analogs 失效
心脏保护生育酚类似物

Cardioprotective tocopherol analogs
摘要:
This invention relates to quaternary ammonium salts of certain 2H-1-benzopyran derivatives, to the intermediates and processes useful for their preparation, to their free-radical scavenger and cellular protective properties and to their end-use application as therapeutic agents.
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