发明授权
US06297257B1 Benzazine derivatives phosphodiesterase 4 inhibitors 失效
苯并嗪衍生物磷酸二酯酶4抑制剂

Benzazine derivatives phosphodiesterase 4 inhibitors
摘要:
Compounds of formula (I) wherein A is an orthocondensed heterocycle optionally substituted by certain substituents and necessarily substituted by a —B—Cy group where the variables are as defined in the specification and the N→O derivatives and pharmaceutically acceptable salts thereof are phosphodiesterase-4 inhibitors.
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