Ryozo Irie

Bitter steroid glucosides, vernoniosides A1, A2, and A3, and related B1 from a possible medicinal plant, Vernonia amygdalina, used by wild chimpanzees.

Mitsuo Jisaka, Hajime Ohigashi, Teruyoshi Takagaki et al. · Tetrahedron · 1992 · 122 citations

Life Sciences, Botany, Plant Sciences +8

Steroid glucosides from vernonia amygdalina, a possible chimpanzee medicinal plant

Mitsuo Jisaka, Hajime Ohigashi, Kazunori Takegawa et al. · Phytochemistry · 1993 · 102 citations

Life Sciences, Botany, Plant Sciences +7

Chalcone Tetramers, Lophirachalcone and Alatachalcone, from<i>Lophira alata</i>as Possible Anti-tumor Promoters

Akira Murakami, Shizuko Tanaka, Hajime Ohigashi et al. · Bioscience Biotechnology and Biochemistry · 1992 · 31 citations

Medicine, Food Science, Pharmacology +13

Ideamine N-Oxides:Pyrrolizidine Alkaloids Sequestered by the Danaine Butterfly, Idea leuconoe.

Ritsuo Nishida, Chul-Sa Kim, Hiroshi Fukami et al. · Agricultural and Biological Chemistry · 1991 · 31 citations · Full text

Pharmacy, Chemistry, Medicinal Chemistry +9

Possible anti-tumour promoters: BI- and tetraflavonoids from Lophira alata

Akira Murakami, Shigeo Tanaka, Hiroaki Ohigashi et al. · Phytochemistry · 1992 · 27 citations

Medicine, Medicinal Chemistry, Oncology +10