Compounds derived from 2 - oxo - 4 - hydroxy - Benzothiazole; Preparation Process; Pharmaceutical composition, Pharmaceutical Combination; and use in the treatment of diseases such as bronchitis, COPD,Asthma and bronchiectasis.

摘要

The present invention provides compounds of formula (I) (A chemical formula should be inserted here-please see paper copy enclosed herewith) wherein Ra, Rb, R1, R2, R3, R4, R5, R6 and R29 are as defined in the specification, processes for their preparation, pharmaceutical compositions containing them and their use in therapy.