A preliminary investigation of the constituents of Astragalus wootoni. [Beta]-substituted-[Delta][superscript alpha], [superscript Beta]-butenolides of the naphthalene, indene and norcholane series ..

William Standish Knowles

1942

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Delta α, [superscript] butenolides and a suggested revision of the structure of the digitalis-strophanthus cardiac aglycones

Walter Dempsey Paist

1941

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Synthesis of #-substituted-#,#-butenolides from acyloxymethyl ketones ...

Robert Griffith Linville

1942

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A survey of cardiac glycosides and genins

J. Hampton Hoch

1961

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The synthesis of simple unsaturated lactones related to the cardiac aglycones ..

Rubin, Martin

1942

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Beitrag zur Synthese digitaloider Aglycone

Hans Heusser

1945

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