(R)-4-(8-methoxy-1-(1-methoxypropan-2-yl)-2-(piperidin-4-yl)-1H-imidazo[4,5-c]quinolin-7-yl)-3,5-dimethylisoxazole 、
叔丁氧羰基-PEG7-乙酸 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,
反应 1.0h,
生成 tert-butyl N-(23-[4-[7-(3,5-dimethyl-1,2-oxazol-4-yl)-8-methoxy-1-[(2R)-1-methoxypropan-2-yl]imidazo[4,5-c]quinolin-2-yl]piperidin-1-yl]-23-oxo-3,6,9,12,15,18,21-heptaoxatricosan-1-yl)carbamate