、 Methyl 2,4,7,8,9-penta-O-acetyl-5-(N-acetylacetamido)-3,5-dideoxy-D-glycero-β-D-galacto-non-2-ulopyranosonate 在
三氟化硼乙醚 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
生成 methyl (2R,4S,5R,6R)-4-acetyloxy-2-[[(2R,3S,4S,5R,6S)-6-[(2R,3R,4S,5R,6R)-4,5-bis[(4-methylbenzoyl)oxy]-2-[(4-methylbenzoyl)oxymethyl]-6-phenylmethoxyoxan-3-yl]oxy-3-hydroxy-4,5-bis[(4-methylbenzoyl)oxy]oxan-2-yl]methoxy]-5-(diacetylamino)-6-[(1S,2R)-1,2,3-triacetyloxypropyl]oxane-2-carboxylate