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US5292770A Butenoic acid derivatives 失效
丁烯酸衍生物

Butenoic acid derivatives
摘要:
A butenoic acid compound is defined by the following formula: ##STR1## in which Z is O,S, vinylene or azomethyne, A is an alkylene and J is phenyl or etc. It is useful to treat the heart desease.
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