Biocatalytic synthesis of chiral cyclic γ-oxoesters by sequential C–H hydroxylation, alcohol oxidation and alkene reduction
作者:Elisabetta Brenna、Michele Crotti、Francesco G. Gatti、Daniela Monti、Fabio Parmeggiani、Andrea Pugliese、Francesca Tentori
DOI:10.1039/c7gc02215h
日期:——
chiral 3-oxoesters, which are useful building blocks for the synthesis of active pharmaceutical ingredients. The allylic hydroxylation of the starting cycloalkenecarboxylates is carried out by using R. oryzae resting cells entrapped in alginate beads, in acetate buffer solution at 25 °C. The oxidation of the intermediate allylic alcohols to unsaturated ketones, performed by the laccase/TEMPO system
Achieving Regio- and Enantioselectivity of P450-Catalyzed Oxidative CH Activation of Small Functionalized Molecules by Structure-Guided Directed Evolution
作者:Rubén Agudo、Gheorghe-Doru Roiban、Manfred T. Reetz
DOI:10.1002/cbic.201200244
日期:2012.7.9
Taming the wild type: Directedevolution of a P450 enzyme enables control of regio‐ and enantioselectiveoxidation of challenging substrates, the starting wild‐type enzyme being unselective. R or S selectivity is possible on an optional basis, setting the stage for further regio‐ and diastereoselective chemical transformations.
PROCESS FOR MAKING LACTAM TACHYKININ RECEPTOR ANTAGONISTS
申请人:Campos Kevin R.
公开号:US20090247770A1
公开(公告)日:2009-10-01
The present invention is directed to a process for preparing α,α disubstituted γ-lactam derivatives of formula (I) that are useful as neurokinin-1 (NK-1) receptor antagonists, and inhibitors of tachykinin and in particular substance P. The compounds are useful in the treatment of certain disorders, including emesis, urinary incontinence, depression, and anxiety.
[EN] PROCESS FOR MAKING LACTAM TACHYKININ RECEPTOR ANTAGONISTS<br/>[FR] PROCÉDÉ SERVANT À FABRIQUER DES LACTAMES ANTAGONISTES DES RÉCEPTEURS DE LA TACHYKININE
申请人:MERCK & CO INC
公开号:WO2008021029A2
公开(公告)日:2008-02-21
[EN] The present invention is directed to a process for preparing certain a,a disubstituted ?-lactam derivatives that are useful as neurokinin-1 (NK-1) receptor antagonists, and inhibitors of tachykinin and in particular substance P. The compounds are useful in the treatment of certain disorders, including emesis, urinary incontinence, depression, and anxiety. [FR] La présente invention concerne un procédé servant à préparer certains dérivés de ?-lactames disubstitués en a,a qui sont utiles en tant qu'antagonistes des récepteurs des neurokinines 1 (NK-1) et en tant qu'inhibiteurs de la tachykinine et en particulier de la substance P. Les composés sont utiles dans le traitement de certains troubles, dont les vomissements, l'incontinence urinaire, la dépression et l'anxiété.