The synthesis of 1,2,3,4,6-penta-O-galloyl-[U-14C]-D-glucopyranose is described. [U-14C] glucopyranose was reacted with tri-O-benzylgallic acid forming 1,2,3,4,6-penta(tri-O-benzylgalloyl)-[U-14C]-D-glucopyranose as chromatograpically separable anomers. Removal of the benzyl group by catalytic hydrogenation afforded 1,2,3,4,6-penta-O-galloyl-[U-14C]-D-glucopyranose in 54% overall yield. Copyright © 2002 John Wiley & Sons, Ltd.
本文描述了 1,2,3,4,6-五-O-甲酰基-[U-14C]-
D-吡喃葡萄糖的合成过程。[U-14C]
吡喃
葡萄糖与三-O-苄基
没食子酸反应,形成 1,2,3,4,6-五(三-O-苄基没食子酰基)-[U-14C]-
D-吡喃葡萄糖色谱分离异构体。通过催化氢化去除苄基,可得到 1,2,3,4,6-五-O-苄基-[U-14C]-
D-吡喃葡萄糖,总产率为 54%。Copyright © 2002 John Wiley & Sons, Ltd. All Rights Reserved.