The present invention relates to a process and intermediates for the preparation of compounds endowed with phosphodiesterase (PDE4) inhibitory activity having formula (I). The invention also relates to the process for the isolation by crystallization of the compound (I) and to its use for the preparation of pharmaceutical compositions for inhalation in combination with suitable carriers or vehicles. The present invention also relates to solvates and crystal forms of a compound of formula (I). The synthesized product is suitable for use in pharmaceutical applications for instance in the treatment of respiratory diseases.
本发明涉及一种用于制备具有
磷酸二酯酶(PDE4)抑制活性的化合物的过程和中间体,其具有
化学式(I)。该发明还涉及通过结晶分离化合物(I)的过程,以及将其与适当载体或溶剂结合用于制备用于吸入的药物组合物的用途。本发明还涉及化合物
化学式(I)的溶剂合物和晶型。合成的产品适用于药物应用,例如用于治疗呼吸道疾病。