21969-70-0Relevant articles and documents
Selective C-N coupling reaction of diaryliodonium salts and dinucleophiles
Ma, Chang,Wu, Xufeng,Zeng, Qingle,Zhou, Lihong,Huang, Yi
supporting information, p. 2873 - 2877 (2017/04/14)
N-Aryl-α-amino amides including their chiral isomers have demonstrated important applications as pharmaceutical drugs; however, to date, a one-step synthetic route for them still remains to be developed. Herein, an efficient ligand-free copper-catalyzed selective C-N coupling reaction of diaryliodonium salts and dinucleophiles under mild conditions was realized. Diaryliodonium salts prefer to react with dinucleophiles at the site of stronger alkalic amino groups. Thus, a general aliphatic amino-selective N-arylation of α-amino amides was disclosed. Additionally, copper-catalyzed N-arylation of diaryliodonium salts afforded the same products as obtained via palladium-catalyzed reactions of aryl halides.
4-OXOIMIDAZOLIDINE-2-SPIROPIPERIDINE DERIVATIVE
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Page 22, (2008/06/13)
The invention relates to 4-oxoimidazolidine-2-spiropiperidine derivatives represented by a general formula [I] ???[in which A1, A2, A3, A4 and A5 stand for optionally halogen-substituted methine, or nitrogen atom; R1 and R2 stand for lower alkyl or the like; R3 stands for hydrogen or lower alkyl; R4 and R5 stand for hydrogen, or lower alkyl which is optionally substituted with hydroxy, or the like] or salts thereof. These compounds act as nociceptin receptor agonist, and are useful as analgesic, reliever from tolerance to narcotic analgesic, reliever from dependence on narcotic analgesic, analgesic enhancer, antiobestic, drug for ameliorating brain function, remedy for schizophrenia, drug for treating regressive neurodegenerative diseases, antianxiety agent or antidepressant and remedy for diabetes insipidus and polyuria; and the like.
PROCESS FOR THE ENZYMATIC PREPARATION OF A BETA-LACTAM DERIVATIVE AND SEPARATION OF D-PHENYLGLYCINE AMIDE
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, (2008/06/13)
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