Preparation of Heteroarenecarbonitriles by Reaction of Heteroarene N-Oxides with Trimethylsilyl Cyanide in the Presence of DBU
摘要:
Several heteroarenecarbonitriles were prepared from the corresponding heteroarene N-oxides by treatment with trimethylsilyl cyanide (TMSCN) in the presence of a base in tetrahydrofuran (THF). 1,8-Diazabicyclo[5.4.0]-7-undecene (DBU) was found to be an effective base for the cyanation.
New 8-(3-amino-piperidin-1-yl)-7-(but-2-ynyl)-xanthines, the preparation thereof and their use as pharmaceutical compositions
申请人:Eckhardt Matthias
公开号:US20060058323A1
公开(公告)日:2006-03-16
The application relates to new substituted xanthines of general formula
wherein R
1
and R
2
are defined as in claims
1
to
11
, the tautomers, the enantiomers, the diastereomers, the mixtures thereof and the salts thereof, which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPP-IV).
8-[3-amino-piperidin-1-yl]-xanthines, their preparation and their use as pharmaceutical compositions
申请人:Himmelsbach Frank
公开号:US20050234108A1
公开(公告)日:2005-10-20
The present invention relates to substituted xanthines of general formula
wherein R is defined as in claim
1
, the tautomers, the stereoisomers, the mixtures thereof and the salts thereof, which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPP-IV).
CYTOTOXIC COMPOUNDS WHICH ARE INHIBITORS OF THE POLYMERISATION OF TUBULIN
申请人:CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
公开号:US20170035761A1
公开(公告)日:2017-02-09
The invention relates to compounds which are inhibitors of the polymerization of tubulin, to the methods for the production thereof, and to the uses of same.
本发明涉及一种抑制微管聚合的化合物,涉及其制备方法以及用途。
3-methyl-7-butinyl-xanthines, the preparation thereof and their use as pharmaceutical compositions
申请人:Langkopf Elke
公开号:US20060079541A1
公开(公告)日:2006-04-13
The present invention relates to new substituted xanthines of general formula
wherein R
1
, R
2
and X are defined as in the claims, the tautomers, the enantiomers, the diastereomers, the mixtures thereof and the salts thereof, which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPP-IV).
8-[3-AMINO-PIPERIDIN-1-YL]-XANTHINES, THEIR PREPARATION AND THEIR USE AS PHARMACEUTICAL COMPOSITIONS
申请人:HIMMELSBACH Frank
公开号:US20090137801A1
公开(公告)日:2009-05-28
Disclosed are substituted xanthines of the formula
wherein R is defined as in claim
1
, the tautomers, the stereoisomers, the mixtures thereof and the salts thereof, which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPP-IV).