Akemi Umeyama

Two unique pentacyclic steroids with cis C/D ring junction from Xestospongia bergquistia Fromont, powerful inhibitors of histamine release

Noboru Shoji, Akemi Umeyama, Kogyoku Shin et al. · The Journal of Organic Chemistry · 1992 · 65 citations

Pharmaceutical Science, Altmetric Attention Score, Pharmacotherapy +19

A New Bromopyrrole Alkaloid and the Optical Resolution of the Racemate from the Marine Sponge <i>Homaxinella</i> sp.

Akemi Umeyama, Seiichi Ito, Eri Yuasa et al. · Journal of Natural Products · 1998 · 63 citations

Isolation of Evodiamine, a Powerful Cardiotonic Principle, from Evodia rutaecarpa Bentham (Rutaceae)

Noboru Shoji, Akemi Umeyama, TSUNEMATSU TAKEMOTO et al. · Journal of Pharmaceutical Sciences · 1986 · 54 citations

Biology, Evodia Rutaecarpa Bentham, Bioorganic Chemistry +7

Dehydropipernonaline, an Amide Possessing Coronary Vasodilating Activity, Isolated from Piper Iongum L

Noboru Shoji, Akemi Umeyama, Nobuaki Saito et al. · Journal of Pharmaceutical Sciences · 1986 · 51 citations

Molecular Pharmacology, Biochemistry, Medicine +4

A New Abietane and Two Dimeric Abietane Diterpenes from the Black Heartwood of &lt;i&gt;Cryptomeria japonica&lt;/i&gt;

Shigenobu Arihara, Akemi Umeyama, Shinya Bando et al. · Chemical and Pharmaceutical Bulletin · 2004 · 50 citations · Full text