cas 131852-63-6, 4-{2-[5-(tert-Butyl-dimethyl-silanyloxy)-2-methylene-cyclohexylidene]-1-hydroxy-ethyl}-7a-methyl-1-(1,4,5-trimethyl-hex-2-enyl)-octahydro-inden-4-ol

Articles about 131852-63-6Total 3 be found

Chemical synthesis, biological activities and action on nuclear receptors of 20S(OH)D3, 20S,25(OH)2D3, 20S,23S(OH)2D3 and 20S,23R(OH)2D3
New and more efficient routes of chemical synthesis of vitamin D3 (D3) hydroxy (OH) metabolites, including 20S(OH)D3, 20S,23S(OH)2D3 and 20S,25(OH)2D3, that are endogenously prod
Atigadda, Venkatram,Brzeminski, Pawel,Fabisiak, Adrian,Janjetovic, Zorica,Jetten, Anton M.,Kim, Tae-Kang,Podgorska, Ewa,Qayyum, Shariq,Raman, Chander,Reddy, Sivani B.,Saleem, Mohammad,Sicinski, Rafal R.,Slominski, Andrzej T.,Slominski, Radomir M.,Song, Yuhua,Song, Yuwei,Tuckey, Robert C.
(2022/02/17)

The modified Julia olefination in vitamin D2 synthesis
A partial synthesis of vitamin D2 employing fragments derived from a new improved degradation procedure is described. The 7,8-double bond of the vitamin D triene system was synthesised via the modified Julia olefination. The new procedure is more efficient than the classical Julia olefination.
Blakemore,Kocienski,Marzcak,Wicha
p. 1209 - 1215
(2007/10/03)

On the Julia Alkenylation reaction in vitamin D synthesis. Isolation of four geometrical isomers of vitamin D4
Coupling of sulfone 2 and aldehyde 3b using the Julia alkenylation procedure has been reexamined using modern product separation techniques. It was found that vitamin D4 1b and its geometric isomers 10, 11 and 12 are formed in a ratio of 75:10:10:5, respectively. The building blocks 2 and 3b were prepared from vitamin D2. Correlations for the structure assignment of vitamin D stereoisomers by 1H NMR spectroscopy are presented.
Blakmore,Grzywacz,Kocienski,Marczak,Wicha
p. 1209 - 1217
(2007/10/03)