9-dihydro-9-O-(2-aminoethyl)-N-desmethyl-N-isopropyl-hydroerythromycin A 在
1-羟基苯并三唑 、
1-(3-二甲基氨基丙基)-3-乙基碳二亚胺 作用下,
以
四氢呋喃 为溶剂,
反应 2.25h,
以48%的产率得到N-[2-[[(2R,3S,4R,5R,6S,7R,9R,10R,11S,12S,13R)-2-ethyl-3,4,9-trihydroxy-12-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-10-[(2S,3R,4S,6R)-3-hydroxy-6-methyl-4-[methyl(propan-2-yl)amino]oxan-2-yl]oxy-3,5,7,9,11,13-hexamethyl-14-oxo-oxacyclotetradec-6-yl]oxy]ethyl]-3H-benzimidazole-5-carboxamide