4-carbamoyl-2-{4-[4-(1,1-dioxo-1-thiomorpholin-4-ylmethyl)-benzyloxy]-1-oxo-1,3-dihydro-isoindol-2-yl}-butyric acid tert-butyl ester 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
以56%的产率得到3-{4-[4-(1,1-dioxo-1-thiomorpholin-4-ylmethyl)-benzyloxy]-1-oxo-1,3-dihydro-isoindol-2-yl}-piperidine-2,6-dione