Invention Grant
US08133887B2 Oxaphenanthrene derivatives 失效
氧杂蒽衍生物

Oxaphenanthrene derivatives
Abstract:
The invention relates to compounds of the formula (I), in which R1, R2, R3, R4, Y and A have the meanings indicated, and to processes for the preparation thereof and to the use thereof for the preparation of medicaments.
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