作者:Claude Boullais、Jacques Delvallee
DOI:10.1002/(sici)1099-1344(199802)41:2<115::aid-jlcr58>3.0.co;2-8
日期:1998.2
Vitamin K 1 was quantitatively reduced by Na 2 S 2 O 4 to dihydrovitamin K 1 (2). The hydroquinone 2 was partially methylated by CH 3 I/K 2 CO 3 to give a mixture of 1 and 4 monomethylethers which were separated by HPLC. Each monoether was oxidized by ceric ammonium nitrate in the presence of [ 18 O] H 2 O to afford the specifically labelled [1- 18 O] or [4- 18 O] vitamin K 1 with isotopic enrichments
Na 2 S 2 O 4 将维生素 K 1 定量还原为二氢维生素 K 1 (2)。氢醌2被CH 3 I/K 2 CO 3 部分甲基化,得到1和4单甲醚的混合物,其通过HPLC分离。在[ 18 O] H 2 O 存在下,每种单醚都被硝酸铈铵氧化,以提供同位素富集为93-95% 的特定标记的[1- 18 O] 或[4- 18 O] 维生素K 1。