Herein, we report the natural ligand quebrachitol (QCT) as a promoter for a Cu(II) catalyst, which is highly effective for N-arylation of various amines and related arylhalides. A series of diarylamine derivatives were obtained in high yields by using diethylene glycol (DEG) as both ligand and solvent. The C–N coupling reactions proceed under mild conditions and exhibit good functional group tolerance
COMPOSITION FOR DIAGNOSIS OF AMYLOID-RELATED DISEASE
申请人:Nakayama Morio
公开号:US20100278733A1
公开(公告)日:2010-11-04
There is provided a composition comprising a compound represented by general formula (I), wherein R
l
represents a 5-iodothiophen-2-yl group or the like, and R
2
represents a 4-dimethylaminophenyl group or the like. This composition is useful for diagnosis of an amyloid-related disease such as Alzheimer's disease because the compound has high binding specificity to amyloid β protein, high permeability through the blood-brain barrier, and a property of being rapidly eliminated from sites other than senile plaques in the brain.
COMPOSITION FOR DIAGNOSING AMYLOID-RELATED DISEASE
申请人:Nagasaki University
公开号:EP2030635A1
公开(公告)日:2009-03-04
There is provided a composition comprising a compound represented by general formula (I), wherein R1 represents a 5-iodothiophen-2-yl group or the like, and R2 represents a 4-dimethylaminophenyl group or the like. This composition is useful for diagnosis of an amyloid-related disease such as Alzheimer's disease because the compound has high binding specificity to amyloid β protein, high permeability through the blood-brain barrier, and a property of being rapidly eliminated from sites other than senile plaques in the brain.
Investigation of asymmetric alcohol dehydrogenase (ADH) reduction of acetophenone derivatives: effect of charge density
作者:Hemantkumar G. Naik、Bahar Yeniad、Cor E. Koning、Andreas Heise
DOI:10.1039/c2ob06870b
日期:——
study the effect of substituent groups of the substrate on the alcoholdehydrogenase (ADH) reductions of aryl–alkyl ketones, several derivatives of acetophenone have been evaluated against ADHs from Lactobacillus brevis (LB) and Thermoanaerobacter sp. (T). Interestingly, ketones with non-demanding (neutral) para-substituents were reduced to secondaryalcohols by these enzymes in enantiomerically pure form