Kazuo Umezawa

Production, isolation and structure determination of a novel .BETA.-glucosidase inhibitor, cyclophellitol, from Phellinus sp.

Sonoko Atsumi, Kazuo Umezawa, HIRONOBU IINUMA et al. · The Journal of Antibiotics · 1990 · 149 citations · Full text

Life Sciences, Biochemistry, Carbohydrate Chemistry +12

The first direct synthesis of α-mangostin, a potent inhibitor of the acidic sphingomyelinase

Kazuhiko Iikubo, Yuichi Ishikawa, Noritaka Ando et al. · Tetrahedron Letters · 2002 · 73 citations

Life Sciences, Biochemistry, Pharmacology +12

Cyclopentabenzofuran Lignan Protein Synthesis Inhibitors from <i>Aglaia odorata</i>

Takuhito Ohse, Shigeru Ohba, Takashi Yamamoto et al. · Journal of Natural Products · 1996 · 73 citations

Pharmacy, Medicinal Chemistry, Pharmacology +10

In vitro transformation of hamster embryo cells by quercetin

Kazuo Umezawa, Taijiro Matsushima, Takashi Sügimura et al. · Toxicology Letters · 1977 · 57 citations

Life Sciences, Cell Biology, Embryology +7

Comutagenic effect of norharman and harman with 2-acetylaminofluorene derivatives.

Kazuo Umezawa, A Shirai, Taijiro Matsushima et al. · Proceedings of the National Academy of Sciences · 1978 · 55 citations · Full text

Pharmacy, Pharmacology, Toxicology +8