(3R,4S,5S,6R,7R,9R,11E,13S,14R)-6-[[(3aR,4S,6R,7aS)-1,6-dimethyl-2-oxo-4,6,7,7a-tetrahydro-3aH-pyrano[4,3-d][1,3]oxazol-4-yl]oxy]-14-ethyl-13-hydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-7-methoxy-3,5,7,9,11,13-hexamethyl-1-oxacyclotetradec-11-ene-2,10-dione 在
溶剂黄146 作用下,
以
水 为溶剂,
反应 1.0h,
以66%的产率得到10,11-anhydro-N-demethyl-3-O-descladinosylclarithromycin 2',3'-carbamate