Benzimidazole derivatives and their use as a medicament
申请人:Poitout Lydie
公开号:US20090170922A1
公开(公告)日:2009-07-02
A subject of the present application is new benzimidazole derivatives of formula
in which A, Y, R
1
, R
2
, R
3
and R
4
represent different variable groups. These products have an antagonist activity of GnRH (Gonadotropin-Releasing Hormone). The invention also relates to pharmaceutical compositions containing said products and their use for the preparation of a medicament.
WALKUP, R. E.;SEARLES, S. ,, JR., TETRAHEDRON, 1985, 41, N 1, 101-106
作者:WALKUP, R. E.、SEARLES, S. ,, JR.
DOI:——
日期:——
US7495110B2
申请人:——
公开号:US7495110B2
公开(公告)日:2009-02-24
US8236965B2
申请人:——
公开号:US8236965B2
公开(公告)日:2012-08-07
Synthesis of sterically hindered 1-arylpyrrolidines and 1-arylpiperidines by condensation of primary aromatic amines with cyclic ethers or diols
作者:Robert E. Walkup、Scott Searles
DOI:10.1016/s0040-4020(01)83473-6
日期:1985.1
1-(-'-dialkylphenyl)- pyrrolidines and -piperidines were prepared by the gas phase alumina mediated condensation of tetrahydrofuran (THF), tetrahydropyran (THP) or the corresponding diols with primary aromatic amines in fair to high yield. This methodology can also be used for the synthesis of 1-phenylhexahydroazepine from aniline. A mechanistic interpretation of the catalytic action of alumina is presented