A new prenylation method based on the reaction of catalytically generated potassium dienolate of prenal with α,β-unsaturated aldehydes is described. The reaction is highly regioselective, via a γ-1,2-addition, and provides an efficient route to retinal.
597. Studies in the polyene series. Part XXXVIII. The synthesis of phenyl analogues of vitamin A acid and vitamin A
作者:B. C. L. Weedon、R. J. Woods
DOI:10.1039/jr9510002687
日期:——
A new vinylic organolithium reagent: An expedient C10+C10 synthesis of retinal
作者:L. Duhamel、P. Duhamel、Y. Le Gallic
DOI:10.1016/s0040-4039(00)60577-4
日期:1993.1
2,6-Dimethyl-8-methoxy-1-lithio-octatetra-1,3,5,7-ene 4 is prepared by bromine-lithium exchange from its readily accessible bromo precursor 8. The lithio reagent 4 reacts with carbonyl compounds to give in one pot, after a mild acidic hydrolysis, the retinoid aldehydes 2.
(EN) Cell proliferation is inhibited by administering a combination of a retinoid and a glitazone, thereby treating disease states caused by uncontrolled cell proliferation, including cancer, restenosis, and atherosclerosis.(FR) L'invention porte sur l'inhibition de la prolifération cellulaire par l'administration d'une combinaison comprenant un rétinoïde et un glitazone, afin de traiter les états pathologiques dus à une prolifération cellulaire incontrôlée, notamment le cancer, la resténose et l'athérosclérose.