Journal of labelled compounds and radiopharmaceuticals p. 329 - 336 (1998)
Update date:2022-08-30
Topics:
Schabdach
Schroeder
Seifert
Deuterium and tritium 3,7-bis-labelled 7-hydroxysterols 3 - 5 were prepared by reduction of the 3,7-dioxosterols 1, 2 with NaB2H4 and NaB3H4. Regioselective oxidation of the deuterium 3,7-bislabelled 7- hydroxysterols 3, 4 with CrO3/DMP led to the 3-labelled 7-oxosterols 6, 7. The 3,7-dioxosterols 1, 2 were synthesized starting from cholesterol and β- sitosterol.
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