Synthesis from quebrachitol of 1l-chiro-inositol 2,3,5-trisphosphate, an inhibitor of the enzymes of 1d-myo-inositol 1,4,5-trisphosphate metabolism
作者:Changsheng Liu、Stefan R. Nahorski、Barry V.L. Potter
DOI:10.1016/0008-6215(92)85042-x
日期:1992.10
Abstract l -Quebrachitol was O -demethylated to give 1 l - chiro -inositol which, on treatment with dibutyltin oxide, benzyl chloride, and tetrabutylammonium iodide in acetonitrile, gave mainly crystalline 1 l -2,3,5-tri- O -benzyl- chiro -inositol ( 5a ) together with 1 l -2,3,5,6-tetra- O -benzyl-chiro-inositol. Catalytic hydrogenolysis of the 1,4,6-tribenzoate ( 6a ) of 5a afforded crystalline (−)-1
摘要将l-瓜儿油醇进行O-去甲基化反应,得到1l-手性肌醇,然后用二丁基氧化锡,苄基氯和四丁基碘化铵在乙腈中处理,主要得到结晶的1l -2,3,5-三-O-苄基-手性肌醇(5a)和1l -2,3,5,6-四-O-苄基-手性肌醇。5a的1,4,6-三苯甲酸酯(6a)的催化氢解得到结晶的(-)-1l -1,4,6-三-O-苯甲酰基-手性肌醇(7)。用双(2-氰乙基)N,N-二异丙基亚磷酰胺或氯二乙氧基膦进行7的磷酸化,然后氧化,得到各自的2,3,5-三磷酸衍生物。用液体氨中的钠或溴代三甲基硅烷,然后用氢氧化钠进行脱保护,然后得到(-)-1 1-手性肌醇2,3,5-三磷酸(2)。