Stereospecific Furanosylations Catalyzed by Bis-thiourea Hydrogen-Bond Donors
摘要:
We report a new method for stereoselective O-furanosylation reactions promoted by a precisely tailored bis-thiourea hydrogen-bond-donor catalyst. Furanosyl donors outfitted with an anomeric dialkylphosphate leaving group undergo substitution with high anomeric selectivity, providing access to the challenging 1,2-cis substitution pattern with a range of alcohol acceptors. A variety of stereochemically distinct, benzyl-protected glycosyl donors were engaged successfully as substrates. Mechanistic studies support a stereospecific mechanism in which rate-determining substitution occurs from a catalyst-donor resting-state complex.
[EN] NEW PHOSPHORUS CONTAINING HETEROCYCLIC COMPOUNDS, SUGAR ANALOGUES, AND COMPOSITIONS HAVING ANTI-CANCER ACTIVITY CONTAINING THE SAME<br/>[FR] NOUVEAUX COMPOSÉS HÉTÉROCYCLIQUES CONTENANT DU PHOSPHORE, ANALOGUES DE SUCRES, ET COMPOSITIONS AYANT UNE ACTIVITÉ ANTICANCÉREUSE LES CONTENANT
申请人:CENTRE NAT RECH SCIENT
公开号:WO2009004096A1
公开(公告)日:2009-01-08
The invention provides new anticancer compounds of formula (1) such as defined in the present description. The invention also provides pharmaceutical compositions to be used in human or veterinary medicine, comprising at least one compound of formula (1). The present invention further relates to a compound of formula (1) such as defined in the present description, for use as a drug. The invention further relates to the use of a compound of formula (1) for manufacturing a human or animal anticancer pharmaceutical composition.
The Development of an Aza-C-Glycoside Library Based on a Tandem Staudinger/Aza-Wittig/Ugi Three-Component Reaction
作者:Tom Wennekes、Kimberly M. Bonger、Katrin Vogel、Richard J. B. H. N. van den Berg、Anneke Strijland、Wilma E. Donker-Koopman、Johannes M. F. G. Aerts、Gijsbert A. van der Marel、Herman S. Overkleeft
DOI:10.1002/ejoc.201200923
日期:2012.11
We report the tandemStaudinger/aza-Wittig/Ugithree-componentreaction mediated synthesis of a 64-member compound library of aza-C-glycosides. The library is composed of four pyrrolidine and three piperidine scaffolds, onto which a number of functional groups is grafted to form seven sublibraries. Variation in the library is achieved by transformation of two pentoses and a hexose into the corresponding
NEW PHOSPHORUS CONTAINING HETEROCYCLIC COMPOUNDS, SUGAR ANALOGUES, AND COMPOSITIONS HAVING ANTI-CANCER ACTIVITY CONTAINING THE SAME
申请人:Centre National de la Recherche Scientifique
公开号:EP2170912A1
公开(公告)日:2010-04-07
PHOSPHORUS CONTAINING HETEROCYCLIC COMPOUNDS, SUGAR ANALOGUES, AND COMPOSITIONS HAVING ANTI-CANCER ACTIVITY CONTAINING THE SAME
申请人:Pirat Jean-Luc
公开号:US20100298272A1
公开(公告)日:2010-11-25
A new anticancer compounds of formula (1) Drugs and pharmaceutical compositions to be used in human or veterinary medicine, which include at least one compound of formula (1). A method of treating and/or preventing cancer in a human or an animal using the compound of formula (1)