克拉霉素N-氧化物 160.0~180.0 ℃
、70.0 Pa
条件下,
反应 2.0h,
以22%的产率得到(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-14-ethyl-12,13-dihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-6-[[(2S,3R,6R)-3-hydroxy-6-methyl-3,6-dihydro-2H-pyran-2-yl]oxy]-7-methoxy-3,5,7,9,11,13-hexamethyl-oxacyclotetradecane-2,10-dione