178694-44-5Relevant academic research and scientific papers
Synthetic studies of vitamin D analogs. XXII. Synthesis and antiproliferation activity of putative metabolites of 1α,25-dihydroxy-22-oxavitamin D3
Watanabe, Hiroyoshi,Hatakeyama, Susumi,Tazumi, Kazuki,Takano, Seiichi,Masuda, Sonoko,Okano, Toshio,Kobayashi, Tadashi,Kubodera, Noboru
, p. 2280 - 2286 (2007/10/03)
As putative metabolites of 1α,25-dihydroxy-22-oxavitamin D3 (OCT), 24-hydroxylated OCT in 24(R) and 24(5) forms, 24-ketoOCT, 26-hydroxylated OCT in 25(S) and 25(R) forms, pentanorOCT and pentanor-ketoOCT were synthesized from the steroidal 20(S)-alcohol. Their antiproliferation activities towards human promyelocytic leukemia cells (HL-60 cells) are also reported. Oxidized derivatives at the C-24 position, 24-ketoOCT, 24(R)-hydroxylated OCT and 24(S)-hydroxylated OCT, showed activities comparable to or slightly weaker than that of OCT, while 26-hydroxylated OCT was less active than OCT. Truncated OCT, pentanor OCT and pentanor-ketoOCT, were inactive at 10-7-10-10M.
