(R)-Apremilast

(R)-N-(2-(1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl)-1,3-dioxoisoindolin-4-yl)acetamide; 
N-​[2-​[(1R)​-​1-​(3-​Ethoxy-​4-​methoxyphenyl)​-​2-​(methylsulfonyl)​ethyl]​-​2,​3-​dihydro-​1,​3-​dioxo-​1H-​isoindol-​4-​yl]​-acetamide;