(4S)-2,6,6-trimethyl-4-O-(2',3',4',6'-tetrapivaloyl-β-D-glucopyranosyl)-cyclohex-2-en-1-one 、
(R)-(+)-3-丁炔-2-醇 在
正丁基锂 作用下,
以
乙醚 为溶剂,
反应 1.0h,
以52%的产率得到(2R,3R,4S,5R,6R)-2-(((1S)-4-hydroxy-4-((R)-3-hydroxybut-1-yn-1-yl)-3,5,5-trimethylcyclohex-2-en-1-yl)oxy)-6-((pivaloyloxy)methyl)tetrahydro-2H-pyran-3,4,5-triyl tris(2,2-dimethylpropanoate)