N-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-N'-<(1R)-2,3,4,5-tetrahydroxy-5-(hydroxymethyl)cyclopentyl>thiourea 在
mercury(II) oxide 作用下,
以
乙醚 、
丙酮 为溶剂,
反应 23.0h,
以100%的产率得到(3aR,4R,5R,6S,6aS)-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