Pomalidomide 4'-alkylC3-acid

Butanoic acid, 4 [[2 (2,6 dioxo 3 piperidinyl) 2,3 dihydro 1,3 dioxo 1H isoindol 4 yl]amino] , Butanoic acid, 4[[2 (2,6dioxo3piperidinyl) 2,3dihydro1,3dioxo1Hisoindol4yl]amino], 4-[[2- (2,6-dioxopiperidin-3-yl) -1,3-dioxoisoindol-4-yl]amino]butanoic acid