The invention relates to crystalline oxalate salts of biphenyl-2-ylcarbamic acid 1-(2-{[4-(4-{[(R)-2-hydroxy-2-(8-hydroxy-2-oxo-1,2-dihydroquinolin-5-yl)ethylamino]-methyl}phenylcarbamoyt)butyl]methylcarbamoyl}ethyl)piperidin-4-yl ester. This invention also relates to compositions containing such a crystalline oxalate salt methods of using such a crystalline oxalate salt to, for example, treat a pulmonary disorder and to processes for preparing such a crystalline oxalate salt.本發明係關於聯苯-2-基胺基甲酸1-(2-{[4-(4-{[(R)-2-羥基-2-(8-羥基-2-側氧基-1,2-二氫喹啉-5-基)乙胺基]甲基}苯胺甲醯基)丁基]甲胺甲醯基}乙基)哌啶-4-基酯之結晶草酸鹽。本發明亦係關於含有該結晶草酸鹽之組合物;使用該結晶草酸鹽例如治療肺病症之方法;及關於製備該結晶草酸鹽之製程。(無元件符號說明)
