Preparation of Benzolactams by Pd(OAc)2-Catalyzed Direct Aromatic Carbonylation
摘要:
We developed a new method for Pd(II)-catalyzed direct aromatic carbonylation in a phosphine-free catalytic system using Pd(OAc)2 and Cu(OAc)2 in an atmosphere of CO gas containing air. The carbonylation proceeded with ortho-palladation, inducing a remarkable site selectivity to afford a variety of five- or six-membered benzolactams from secondary omega-arylalkylamines, such as N-alkylbenzylamines or N-alkylphenethylamines.
The present invention relates novel flavin derivatives and other flavin derivatives, their use and compositions for use as riboswitch ligands and/or anti-infectives. The invention also provides method of making novel flavin derivatives.
ACYCLIC ETHYLENEDIAMINE DERIVATIVES AS SUBSTANCE P RECEPTOR ANTAGONISTS
申请人:PFIZER INC.
公开号:EP0613458A1
公开(公告)日:1994-09-07
BIPHENYL DERIVATIVES AS PHARMACEUTICALS
申请人:Novartis AG
公开号:EP1037876A1
公开(公告)日:2000-09-27
Biarylurea derivatives
申请人:Hayama Takashi
公开号:US20070027147A1
公开(公告)日:2007-02-01
The present invention relates to a compound of Formula (I) and the manufacturing method(s) thereof and the use thereof:
Formula (I)
wherein: Ar is a nitrogen-containing heteroaromatic ring group; X and Z are each a carbon atom, and so on; Y is CO, and so on; R
1
is a hydrogen atom, and so on; R
2
and R
3
are each a hydrogen atom, and so on; R
4
and R
5
are each a hydrogen atom, and so on; and the formula
is a single bond or a double bond.
According to the present invention, the compound of the present invention can provide Cdk4 and/or Cdk6 inhibitors for treating malignant tumors, because the compounds of the present invention exhibit a prominent growth inhibitory activity against tumor cells.