Paaren HE, Fivizzani MA, Schnoes HK, DeLuca HF. Preparation of tritium- or deuterium-
labeled vitamin D analogs by a convenient general method.
Proc Natl Acad Sci U S A 1981;
78:6173-5. [PMID:
6273856 PMCID:
PMC349000 DOI:
10.1073/pnas.78.10.6173]
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Abstract
The three-step conversion of vitamin D analogs to 6-oxo-3,5-cyclovitamin D derivatives followed by reduction with a tritide or deuteride reagent and subsequent cycloreversion gives 6-tritio(deutero)vitamin D derivatives and corresponding 5,6-trans-analogs. The method is general and affords the 6-labeled-vitamin D analogs in approximately 20% overall yield.
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