9-dihydro-9-O-(2-aminoethyl)-N-desmethyl-N-isopropyl-hydroerythromycin A 、
丙酮 在
溶剂黄146 、 sodium cyanoborohydride 作用下,
以
甲醇 为溶剂,
反应 12.5h,
以63%的产率得到(3R,4S,5S,6R,7R,9R,10S,11R,12R,13S,14R)-14-ethyl-7,12,13-trihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-6-[(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-10-[2-(propan-2-ylamino)ethoxy]-oxacyclotetradecan-2-one