Synthesis of 24(28)-methylene-1α-hydroxyvitamin D3, a novel vitamin D3 analogue

被引:5
作者
Guo, Wei [1 ]
Fang, Zhijie [1 ]
Li, Hongliang [1 ]
Liu, Yanan [1 ]
机构
[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China
关键词
24(28)-methylene-1 alpha-hydroxyvitamin D-3; Wittig-Horner olefination; photoisomerisation; vitamin D-2; KEY INTERMEDIATE; METABOLITE; STEROIDS;
D O I
10.3184/174751914X13941144023496
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
24(28)-Methylene-1 alpha-hydroxyvitamin D-3 was synthesised in 13 steps from vitamin D-2. The key step of the synthesis involved the Wittig-Horner olefination of a nor-vitamin D-2 aldehyde with diethylphosphono-3-methyl-2-butanone. The resulting enone was followed by reduced methylenation, photoisomerisation and deprotection then gave the target compound.
引用
收藏
页码:231 / 235
页数:5
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