Stereoselective Synthesis of 24-Fluoro-25-Hydroxyvitamin D3 Analogues and Their Stability to hCYP24A1-Dependent Catabolism
2021 ◽
Vol 22
(21)
◽
pp. 11863
Keyword(s):
Two 24-fluoro-25-hydroxyvitamin D3 analogues (3,4) were synthesized in a convergent manner. The introduction of a stereocenter to the vitamin D3 side-chain C24 position was achieved via Sharpless dihydroxylation, and a deoxyfluorination reaction was utilized for the fluorination step. Comparison between (24R)- and (24S)-24-fluoro-25-hydroxyvitamin D3 revealed that the C24-R-configuration isomer 4 was more resistant to CYP24A1-dependent metabolism than its 24S-isomer 3. The new synthetic route of the CYP24A1 main metabolite (24R)-24,25-dihydroxyvitamin D3 (6) and its 24S-isomer (5) was also studied using synthetic intermediates (30,31) in parallel.
1985 ◽
Vol 260
(25)
◽
pp. 13625-13630
Keyword(s):
Keyword(s):
1980 ◽
Vol 21
(52)
◽
pp. 5027-5028
◽
Keyword(s):
1980 ◽
Vol 239
(6)
◽
pp. E515-E523
◽
2011 ◽
Vol 126
(3-5)
◽
pp. 72-77
◽
Keyword(s):
Keyword(s):
1985 ◽
Vol 248
(3)
◽
pp. E281-E285
◽