Eclipsed Conformation of the Exocyclic N−CH2 Bond in N-Neopentylpiperidines and the Stereodynamic Consequences As Studied by Dynamic NMR Spectroscopy and Molecular Mechanics Calculations
摘要:
The dynamic stereochemistry of a range of N-neopentylpiperidines 1 with an eclipsed N-CH2-t-Bu bond is compared with that of the corresponding range of N-ethylpiperidines 2 with a gauche N-CH2Me bond. By using dynamic NMR spectroscopy, the relative importance of ring inversion, exocyclic bond rotation, and nitrogen inversion are elucidated and barriers are reported and discussed. Minor populations of the neopentyl-axial-eclipsed conformation are detected directly and identified with the help of molecular mechanics calculations. The corresponding N-alkylpyrrolidines are also reported.
HEPATITIS C VIRUS INHIBITORS AND USES THEREOF IN PREPARATION OF DRUGS
申请人:CHANGZHOU YINSHENG PHARMACEUTICAL CO., LTD.
公开号:US20170253614A1
公开(公告)日:2017-09-07
A series of hepatitis C virus (HCV) inhibitors and compositions and applications thereof in the preparation of drugs for treating chronic HCV infection. Especially, a series of compounds that are used as NS5A inhibitors, and compositions and uses thereof in the preparations of drugs.
The present invention relates to a novel benzenedicarboxamide derivative and the use thereof as an insecticide having the formula (I) wherein the chemical groups W
1
to W
9
, and R
1
to R
3
are as defined here-in.
[EN] NOVEL THIENOPYRIMIDINE DERIVATIVES, PROCESSES FOR THE PREPARATION THEREOF AND THERAPEUTIC USES THEREOF<br/>[FR] NOUVEAUX DÉRIVÉS DE THIÉNOPYRIMIDINE, LEURS PROCÉDÉS DE PRÉPARATION ET LEURS UTILISATIONS THÉRAPEUTIQUES
申请人:SANOFI SA
公开号:WO2013150036A1
公开(公告)日:2013-10-10
The present invention relates to compounds of formula (I): wherein R6 is -CONH2 or a -C(Rα)(Rβ)(OH) group; R is a substituted phenyl or heteroaryl group; R7 is an optionally substituted aryl or heteroaryl group. Process for the preparation thereof and therapeutic use thereof.
NOVEL THIENOPYRIMIDINE DERIVATIVES, PROCESSES FOR THE PREPARATION THEREOF AND THERAPEUTIC USES THEREOF
申请人:CARRY Jean-Christophe
公开号:US20130261106A1
公开(公告)日:2013-10-03
The present invention relates to compounds of formula (I):
wherein R6 is —CONH
2
or a —C(R
α
)(R
β
)(OH) group; R is a substituted phenyl or heteroaryl group; R7 is an optionally substituted aryl or heteroaryl group.
Process for the preparation thereof and therapeutic use thereof.
The invention concerns pyridine and pyrazine derivatives of Formula I
or a pharmaceutically-acceptable salt thereof, wherein each of W, G
1
, G
2
, G
3
, G
4
, J, Ring A, n and R
3
has any of the meanings defined hereinbefore in the description; processes for their preparation, pharmaceutical compositions containing them and their use in the manufacture of a medicament for use in the treatment of cell proliferative disorders.