Synthesis of furly intermediates, and cardenolides and their...

Details Synthesis of furly intermediates, and cardenolides and their... Synthesis of furly intermediates, and cardenolides and their...

C - Chemistry, Metallurgy

07

J

260/21

C07J 19/00 (2006.01) C07J 1/00 (2006.01) C07J 17/00 (2006.01)

Patent

CA 1159050

SYNTHESIS OF FURYL INTERMEDIATES, AND CARDENOLIDES AND THEIR ISOMERS PREPARED THEREFROM ABSTRACT The invention relates to furyl intermediates and the preparation thereof, said intermediates being particularly useful in the preparation of synthetic cardenolides and their isomers. The process provides for the reaction of an unsaturated steroidal 17 ketone with a .beta.-furyl compound to produce an allylic alcohol which is subjected to acetylation and allylic rearrangement. The resulting material is then hydrogenated to produce the furyl intermediate. Cardenolides are formed therefrom by oxidation of the furyl intermediates.

360950

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