摘要 |
Quinazoline and pyrido[2,3-d]pyrimidine phosphodiesterase 7 (PDE 7) inhibitors of the following formula wherein R<SUP>1</SUP>, R<SUP>2</SUP>, L, Y<SUP>1</SUP>, Y<SUP>2</SUP>, Y<SUP>3 </SUP>and Z are as described herein, are provided which are useful in treating T-cell mediated diseases.
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