| 摘要 |
PYRIMIDONE DERIVATIVES AND ANALOGS IN THE PC7641A TREATMENT OF ASTHMA OR CERTAIN SKIN DISORDERS Racemic or optically active compound of the formula wherein X is O or NH, R1 is a (C7-C11)polycycloalkyl group, R2 is methyl or ethyl, Y is or ; R3 is hydrogen, (C1-C3)alkyl, (C2-C3)alkenyl, benzyl or phenethyl, and R4 is hydrogen, (C1-C3)alkyl or (C2-C3)alkanoyl, are useful in the treatment of asthma or inflammatory airway or skin diseases.
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