Methyl 2-O-<2,3-di-O-benzoyl-4,6-dideoxy-4-(2,4-di-O-benzoyl-3-deoxy-L-glycero-tetronamido)-α-D-mannopyranosyl>-4,6-dideoxy-4-(2,4-di-O-benzoyl-3-deoxy-L-glycero-tetronamido)-α-D-mannopyranoside 在
sodium methylate 作用下,
以
甲醇 为溶剂,
以100%的产率得到(S)-N-{(2R,3S,4S,5S,6S)-5-[(2R,3S,4S,5S,6R)-5-((S)-2,4-Dihydroxy-butyrylamino)-3,4-dihydroxy-6-methyl-tetrahydro-pyran-2-yloxy]-4-hydroxy-6-methoxy-2-methyl-tetrahydro-pyran-3-yl}-2,4-dihydroxy-butyramide