Process for preparing 5-substituted pyrrolo [3,4-d] pyrimidine-2-4-diones of formula (I)
wherein W, Q, R1, R2 and R10 are as defined in the specification and Y is COOH, wherein a corresponding C1-5 alkyl ester compound is hydrolyzed. The compounds are useful for treating or reducing the risk of reversible obstructive airways disease.
制备5-取代
吡咯并[3,4-d]
嘧啶-2,4-二酮(式(I)中W、Q、R1、R2和R10定义如说明书,Y为COOH)的过程,其中相应的C1-5烷基酯化合物被
水解。这些化合物可用于治疗或减少可逆性阻塞性呼吸道疾病的风险。