Synonyms: 3-O-Decyclopropyl Roflumilast, Benzamide, N-(3,5-dichloro-4-pyridinyl)-4-(difluoromethoxy)-3-hydroxy-, N-(3,5-Dichloro-4-pyridinyl)-4-(difluoromethoxy)-3-hydroxybenzamide, 3-Hydroxy-N-(3,5-dichloro-4-pyridinyl)-4-(difluoromethoxy)benzamide, N-(3,5-Dichloropyridin-4-yl)-4-(difluorometho