作者:Gordon R. Duffin、George J. Ellames、Sascha Hartmann、John M. Herbert、David I. Smith
DOI:10.1039/b002104k
日期:——
Synthetic routes to [glucose-U-14C]-1-O-(β-D-glucopyranosyl)-N-stearoyl-D-erythro-sphingosine 1b and to [glucose-13C6]-1-O-(β-D-glucopyranosyl)sphingosine ([glucose-13C6]glucopsychosine, 2b) are described. Whereas the protected ceramide precursor for 1b was prepared using conventional methodology, two new strategies were developed in the course of the synthesis of 2b. Of these, one relies on keeping a protecting group in place at all times to avoid the handling difficulties associated with sphingosine 4, while the other generates a protected derivative (24) of sphingosine indirectly by means of a Mitsunobu inversion.
本文描述了[葡萄糖-U-14C]-1-O-(β-D-吡喃葡萄糖基)-N-硬脂酰-D-赤藓-鞘氨醇 1b 和[葡萄糖-13C6]-1-O-(β-D-吡喃葡萄糖基)鞘氨醇 ([葡萄糖-13C6]葡萄糖鞘氨醇,2b) 的合成路线。虽然 1b 的受保护神经酰胺前体是用传统方法制备的,但在合成 2b 的过程中开发了两种新策略。其中一种方法是始终保持一个保护基团,以避免与鞘氨醇 4 相关的处理难题,而另一种方法则是通过三忍反转法间接生成鞘氨醇的保护衍生物 (24)。