T. Takeshita

Biological activity of 1α,24‐dihydroxycholecalciferol; A new synthetic analog of the hormonal form of vitamin D

H. Kawashima, H. Orimo, N. Ikekawa, 1977, FEBS letters.

Naturally occurring 24,25-dihydroxyvitamin D3 is a mixture of both C-24R and C-24S epimers.

A. Norman, S. Ishizuka, T. Takeshita, 1984, Archives of biochemistry and biophysics.

Natural 25,26-dihydroxyvitamin D3 is an epimeric mixture.

H. DeLuca, N. Ikekawa, N. Koizumi, 1983, Proceedings of the National Academy of Sciences of the United States of America.