Patent ID: 8859778

Claim:
A combination, comprising at least one compound of formula (I) as an (−) enantiomer wherein: n is 0 or 1; R1 and R2 may be the same or different, and are selected from the group consisting of: linear or branched C 1 -C 6 alkyl; —OR3 wherein R3 is a linear or branched C 1 -C 6 alkyl or C 3 -C 7 cycloalkyl; and —NHSO 2 R4 wherein R4 is a linear or branched C 1 -C 4 alkyl, wherein at least one of R1 and R2 is —NHSO 2 R4, or a pharmaceutically acceptable salt thereof; and at least one second pharmaceutical active component selected from the group consisting of a long-acting β 2 agonist, a M3 antagonist, and a corticosteroid, wherein: said β 2 agonist is selected from the group consisting of carmoterol, GSK-642444, indacaterol, milveterol, arformoterol, formoterol, salbutamol, formoterol, levalbuterol, terbutaline, AZD-3199, BI-1744-CL, LAS-100977, bambuterol, isoproterenol, procaterol, clenbuterol, reproterol, fenoterol and ASF-1020; said M3 antagonist is selected from the group consisting of aclidinium, tiotropium, ipratropium, and oxitropium; and said corticosteroid is selected from the group consisting of dexamethasone, fluticasone, fluticasone furoate, prednisolone, betamethasone, budesonide, mometasone, mometasone furoate, triamcinolone acetonide, ciclesonide, TPI-1020, beclomethasone, beclomethasone dipropionate, prednisone, deflazacort, hydrocortisone, QAE-397, and flunisolide.