Novel synthesis of 2-Substituted 19-norvitamin D A-ring phosphine oxide from d-glucose as a building block
19-Norvitamin D A-ring phosphine oxide 5 was synthesized by a new sequence mode starting from d-glucose as a chiral template. Transformation of the pyranoside ring into the A-ring carbocycle was achieved by the Pd-catalyzed Ferrier rearrangement. The phosphine oxide 5 was obtained in an 18% overall...
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Veröffentlicht in: | Bioorganic & medicinal chemistry letters 2003-03, Vol.13 (5), p.809-812 |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | 19-Norvitamin D A-ring phosphine oxide
5 was synthesized by a new sequence mode starting from
d-glucose as a chiral template. Transformation of the pyranoside ring into the A-ring carbocycle was achieved by the Pd-catalyzed Ferrier rearrangement. The phosphine oxide
5 was obtained in an 18% overall yield by this novel cost-effective method.
19-Norvitamin D A-ring phosphine oxide was synthesized by a new sequence mode starting from
d-glucose as a chiral template. |
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ISSN: | 0960-894X 1464-3405 |
DOI: | 10.1016/S0960-894X(03)00005-2 |