Keiko Nakayama

Isolation, identification, and metabolism of (23S,25R)-25-hydroxyvitamin D3 26,23-lactol. A biosynthetic precursor of (23S,25R)-25-hydroxyvitamin D3 26,23-lactone.

S. YAMADA, Keiko Nakayama, Hiroaki Takayama et al. · Journal of Biological Chemistry · 1984 · 55 citations · Full text

Stereochemistry of 25‐hydroxyvitamin D₃—26,23‐lactone and 1α,25—dihydroxyvitamin D₃—26,23‐lactone in rat serum

Seiichi Ishizuka, Hisao Yamaguchi, Sachiko Yamada et al. · FEBS Letters · 1981 · 48 citations · Full text

Pharmacology, Rat Serum, Physiology +1

Biological activity of 24,24-difluoro-1α,25-dihydroxyvitamin D3 and 1α,25-dihydroxyvitamin D3-26,23-lactone in inducing Differentiation of human myeloid leukemia cells

Yoshiko Shiina, E Abe, Chisato Miyaura et al. · Archives of Biochemistry and Biophysics · 1983 · 47 citations

Biological Activity, Hematological Malignancy, 24,24-Difluoro-1α,25-dihydroxyvitamin D3 +7

Stereoselective synthesis of (25S)-25-hydroxyvitamin D3 26,23-lactone

Sachiko Yamada, Keiko Nakayama, Hiroaki Takayama · Tetrahedron Letters · 1981 · 41 citations

Engineering, Organic Chemistry, Stereoselective Synthesis +3

Studies of vitamin D oxidation. 3. Dye-sensitized photooxidation of vitamin D and chemical behavior of vitamin D 6,19-epidioxides

Sachiko Yamada, Keiko Nakayama, Hiroaki Takayama et al. · The Journal of Organic Chemistry · 1983 · 26 citations

Pharmaceutical Science, Nutrient Bioavailability, Photochemistry +14