Synthesis of 17α-bromovinyl- and 17α-iodovinylnortestosterone derivatives
Autor: | Henry Laurent, Paul-Eberhard Schulze, Rudolf Wiechert, Helmut Hofmeister |
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Rok vydání: | 1986 |
Předmět: | |
Zdroj: | Tetrahedron. 42:3575-3578 |
ISSN: | 0040-4020 |
DOI: | 10.1016/s0040-4020(01)87323-3 |
Popis: | Depending upon the reaction conditions, norethisterone (1) and its ketal 2 can be transformed with tributyltin hydride to either the (E)-or(Z)-17α-(2-tributylstannylvinyl)-nortestosterone derivatives 3, 8 and 13. Further treatment with N-bromo- or N-iodosuccinimide yields the corresponding (E)- and (Z)-17α-halovinyl steroids 6,7,10 and 11. Radio-labelled (Z)-17α-(2-iodovinyl)-nortestosterone was prepared by reaction of the 17α-stannylvinyl derivative 13 with Na125I. |
Databáze: | OpenAIRE |
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