(9S)-9-dihydro-N-desmethyl-N-isopropylerythromycin A 、
2-bromo-N-cyclobutyl-acetamide 在
potassium tert-butylate 作用下,
以
四氢呋喃 、
乙二醇二甲醚 为溶剂,
反应 2.17h,
以0.058 g的产率得到N-cyclobutyl-2-((2R,3S,4R,5R,6S,7R,9R,10R,11S,12S,13R)-2-ethyl-3,4,9-trihydroxy-10-((2S,3R,4S,6R)-3-hydroxy-4-(isopropyl(methyl)amino)-6-methyltetrahydro-2H-pyran-2-yloxy)-12-((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yloxy)-3,5,7,9,11,13-hexamethyl-14-oxooxacyclotetradecan-6-yloxy)acetamide