Acetic acid (3aS,4S,5R,6S,6aR)-6-acetoxy-4-acetoxymethyl-2-[acetyl-((2S,3R,4S,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-amino]-4-hydroxy-4,5,6,6a-tetrahydro-3aH-cyclopentaoxazol-5-yl ester 在
sodium methylate 作用下,
以
甲醇 为溶剂,
以100%的产率得到(3aS,4S,5R,6R,6aR)-4-Hydroxymethyl-2-((2S,3R,4S,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-ylamino)-4,5,6,6a-tetrahydro-3aH-cyclopentaoxazole-4,5,6-triol