6-(Benzo[d]thiazol-6-ylamino)-4-(cyclopentylamino)nicotinic acid 、 5-[4-[(4-aminocyclohexyl)methyl]piperazin-1-yl]-2-(2,6-dioxo-3-piperidyl)isoindoline-1,3-dione 2,2,2-trifluoroacetic acid 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以12 %的产率得到6-(1,3-benzothiazol-6-ylamino)-4-(cyclopentylamino)-N-[4-[[4-[2-(2,6-dioxopiperidin-3-yl)-1,3-dioxoisoindol-5-yl]piperazin-1-yl]methyl]cyclohexyl]pyridine-3-carboxamide