9-[3-(2-aminoethoxy)propyl]-3,3-dimethyl-7-oxo-1H,7H-2-[1,3]oxazino[5,4,3-ij]quinoline-6-carboxylic acid trifluoroacetate 、
2'-O-acetyl-4''-O-(imidazol-1-ylcarbonyl)erythromycin A 9-dihydro-9,11-ethylidene acetal 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 72.0h,
生成 2'-O-acetyl-4''-O-{2-[3-(6-carboxy-3,3-dimethyl-7-oxo-1H,7H-2-[1,3]oxazino[5,4,3-ij]quinolin-9-yl)propyloxy]-ethylcarbamoyl}-(9S)-9-O-11-O-ethylidene-9-dihydroerythromycin A