6-Methyl δ-lactol derived chiral glycine equivalents for the asymmetric synthesis of protected α-amino amides
摘要:
Two new delta-lactol derived chiral glycine equivalents have been prepared in one-pot processes in good yields from the known 6-methyltetrahydropyran-2-ol. Alkylation proceeds in moderate to good yields and moderate to good selectivities under experimentally simple conditions. The lactol chiral auxiliary is readily removed under mild acidic conditions to give N-Cbz protected alpha-amino amides in good yields. (C) 2004 Elsevier Ltd. All rights reserved.
Origin of Diastereocontrol in the Oxy-Michael Reactions of δ-Lactol Anions: A Computational and Experimental Study
作者:Robert D. Richardson、Felix A. Hernandez-Juan、John W. Ward、Darren J. Dixon
DOI:10.1002/chem.200801368
日期:2008.10.29
energy refinements. The resulting proposed model for the origins of stereocontrol in this reaction has been tested by experiment. The reactions lead to a high cis diastereoselectivity across the THP ring due to the preference for both the alkoxide and the 6-substituent to sit equatorial in the alkylation transition structure. In the oxy-Michael addition of these lactolates to beta-substituted nitroolefins
CONJUGATES OF IMMUNE CELL SPECIFIC MACROLIDE COMPOUNDS WITH ANTI-INFLAMMATORY COMPOUNDS FOR IMPROVED CELLULAR TARGETING OF ANTI-INFLAMMATORY THERAPY
申请人:GlaxoSmithKline istrazivacki centar Zagreb d.o.o.
公开号:EP1351973B1
公开(公告)日:2010-03-31
ENZYMATIC SYNTHESIS OF ACTIVE PHARMACEUTICAL INGREDIENT AND INTERMEDIATES THEREOF
申请人:LEK Pharmaceuticals d.d.
公开号:EP2655650B1
公开(公告)日:2017-12-20
BIOCONJUGATES OF HETEROCYCLIC COMPOUNDS
申请人:Hao Xiujuan
公开号:US20190339283A1
公开(公告)日:2019-11-07
The invention provides bioconjugates of heterocylic compounds such as S-adenosylmethionine and S-adenosylhomocysteine with biotin or digoxigenin. The bioconjugates also include carbon and nitrogen linker moieties of varying length that are used to attach such compounds to biotin or digoxigenin. The conjugates are useful in immunoassays. The invention provides a method for detecting SAM and SAH, comprising the steps of: (a) preparing the following components: (i) bio-conjugates of SAM, SAM analogs or SAH; (ii) an europium, a terbium cryptate or other fluorophore as a donor that has a specific ligand for the tracer in the bio-conjugates of (i); (iii) an acceptor fluorescent dye that has the excitation spectra overlap those of donor's emissions and has an antibody specific for SAM or SAH labeled; (b) addition of the biological fluid containing said SAM or SAH; and (c) spectroscopic measurement of the fluorescence of the donor and the fluorescence of from the acceptor.
[EN] MACROLIDE COMPOUNDS AND METHODS OF MAKING AND USING THE SAME<br/>[FR] COMPOSÉS MACROLIDES ET PROCÉDÉS POUR LEUR FABRICATION ET LEUR UTILISATION
申请人:RIB X PHARMACEUTICALS INC
公开号:WO2008143729A2
公开(公告)日:2008-11-27
[EN] The present invention provides a family of branched amide containing macrocyclic compounds useful as therapeutic agents. More particularly, these compounds are useful as anti-infective, antiproliferative, anti-inflammatory, and prokinetic agents. [FR] La présente invention concerne une famille d'amide ramifiée contenant des composés macrocycliques utiles comme agents thérapeutiques. En particulier, ces composés sont utiles comme agents anti-infectieux, anti-prolifération, anti-inflammatoire et procinétiques.