Rapid, Hydrolytically Stable Modification of Aldehyde-Terminated Proteins and Phage Libraries
作者:Pavel I. Kitov、Daniel F. Vinals、Simon Ng、Katrina F. Tjhung、Ratmir Derda
DOI:10.1021/ja5023909
日期:2014.6.11
substituents in the aromatic ring that increase the basicity of the aromaticamine. The rate of up to 40 M(-1) s(-1) between an electron-rich aldehyde and 5-methoxy-ABAO (PMA), which was observed at pH 4.5, places this reaction among the fastest known bio-orthogonal reactions. Reaction between M13 phage-displayed library of peptides terminated with an aldehyde moiety and 1 mM biotin-ABAO derivative reaches completion
Improved and expanded one-pot, two-component Boulton-Katritzky syntheses of N–N bond containing bicyclic heterocycles
作者:Kyle W. Knouse、Laura E. Ator、Lauren E. Beausoleil、Zachary J. Hauseman、Rebecca L. Casaubon、Gregory R. Ott
DOI:10.1016/j.tetlet.2016.11.092
日期:2017.1
two-component syntheses of bicyclic heterocycles containing a 3-N-acyl-3-amino-1,2-pyrazole motif from N′-hydroxy-carboxyamidines and acylbenzotriazoles have been developed. Importantly, this sequence obviates the need for hydrazine or N-aminating reagents to synthesize the key nitrogen–nitrogen (N–N) bond of these heterocycles, which is formed via Boulton-Katritzky rearrangement. A diverse array of pharmaceutically
[EN] NOVEL OXADIAZOLE DERIVATIVES AS SPHINGOSINE 1-PHOSPHATE (S1P) RECEPTOR MODULATORS<br/>[FR] NOUVEAUX DÉRIVÉS D'OXADIAZOLE UTILISÉS COMME MODULATEURS DES RÉCEPTEURS DE LA SPHINGOSINE 1-PHOSPHATE (S1P)
申请人:ALLERGAN INC
公开号:WO2012074718A1
公开(公告)日:2012-06-07
The present invention relates to novel oxadiazole derivatives, processes for preparing them, pharmaceutical compositions containing them and their use as pharmaceuticals as modulators of sphingosine-1 -phosphate receptors.
3-(2-amino-1-azacyclyl)-5-aryl-1,2,4-oxadiazoles as s1p receptor agonists
申请人:Colandrea J. Vincent
公开号:US20060252741A1
公开(公告)日:2006-11-09
The present invention encompasses compounds of Formula (I): as well as the pharmaceutically acceptable salts thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.
Provided is an agricultural composition comprising a compound represented by the formula (I) or a salt thereof or a hydrate thereof, for controlling a plant disease due to a plant pathogen:
[wherein, G represents a di-valent aromatic hetero 5-membered ring optionally having a halogen atom or C1 to 3 alkyl group (with the proviso that a hetero atom of the aromatic hetero 5-membered ring is a nitrogen atom, oxygen atom or sulfur atom), R
1
represents a hydrogen atom or amino group, R
2
, R
3
and R
4
represent each independently a hydrogen atom or the like, and E represents an optionally substituted 5 to 10-membered heterocyclic group or C6-10 aryl group.].