Synthesis of [3-13C]-2,3-dihydroxy-4-methoxybenzaldehyde
摘要:
An efficient synthesis of [3-C-13]-2,3-dihydroxy-4-methoxybenzaldehyde, an isotopically labelled probe of a common intermediate used in the synthesis of a number of biologically relevant molecules, has been achieved in 9 steps from an acyclic, non-aromatic precursor. A C-13 label for molecular imaging was introduced in a linear synthesis from the reaction of [C-13] -labelled methyl iodide with glutaric monomethyl ester chloride. Cyclisation then aromatisation gave 1,3-dimethoxybenzene and an additional methoxy group was introduced by a formylation/Baeyer Villigerihydrolysisimethylation sequence. Subsequent ortho-formylation and selective demethylation yielded the desired [3-C-13]-2,3-dihydroxy-4-methoxybenzaldehyde. (C) 2015 Elsevier Ltd. All rights reserved.
Synthesis of [3-13C]-2,3-dihydroxy-4-methoxybenzaldehyde
作者:Rebecca C. Collins、Martyn N. Paley、Gillian M. Tozer、Simon Jones
DOI:10.1016/j.tetlet.2015.12.088
日期:2016.2
An efficient synthesis of [3-C-13]-2,3-dihydroxy-4-methoxybenzaldehyde, an isotopically labelled probe of a common intermediate used in the synthesis of a number of biologically relevant molecules, has been achieved in 9 steps from an acyclic, non-aromatic precursor. A C-13 label for molecular imaging was introduced in a linear synthesis from the reaction of [C-13] -labelled methyl iodide with glutaric monomethyl ester chloride. Cyclisation then aromatisation gave 1,3-dimethoxybenzene and an additional methoxy group was introduced by a formylation/Baeyer Villigerihydrolysisimethylation sequence. Subsequent ortho-formylation and selective demethylation yielded the desired [3-C-13]-2,3-dihydroxy-4-methoxybenzaldehyde. (C) 2015 Elsevier Ltd. All rights reserved.
The first synthesis of [2-13C]phloroglucinol
作者:Laura J. Marshall、Karl M. Cable、Nigel P. Botting