The present invention is directed to 2,6-morpholine derivatives of Formula (I): and pharmaceutically acceptable salts thereof, wherein Z
1
, Z
2
, V
1
, V
2
, V
3
, R
6
, R
6A
, and X are defined herein. The invention also relates to methods of using the 2,6-morpholine derivatives of the invention for the inhibition of HV protease, the inhibition of HV replication, the prophylaxis of infection by HIV, the treatment of infection by HIV, and the prophylaxis, treatment, and delay in the onset or progression of AIDS. The compounds and their salts can be employed as ingredients in pharmaceutical compositions, optionally in combination with other antivirals, immunomodulators, antibiotics or vaccines.
A general copper-catalyzed radical C(sp3)−C(sp2) cross-coupling to access 1,1-diarylalkanes under ambient conditions
作者:Xiao-Long Su、Sheng-Peng Jiang、Liu Ye、Guo-Xing Xu、Ji-Jun Chen、Qiang-Shuai Gu、Zhong-Liang Li、Xin-Yuan Liu
DOI:10.1016/j.tet.2021.132152
日期:2021.6
A general copper-catalyzedC(sp3)−C(sp2) cross-coupling of (hetero)benzyl bromides with the air- and moisture-stable aryl nucleophiles has been developed, providing a facile access to pharmaceutically useful 1,1-di(hetero)arylalkane and 1-aryl-1-heteroarylalkane scaffolds. Critical to the success is the utilization of a proline-based N,N,P-ligand to enhance the reducing capability of copper, thus easily
An object of the present invention is to provide a medicinal drug much improved in anti tumor activity and excellent in safety. According to the present invention, there is provided a medicinal drug containing a compound represented by the following general formula (1) or a salt thereof as an active ingredient: [Formula 1] wherein X
1
represents a nitrogen atom or a group —CH═, R
1
represents a group -Z-R
6
, in which Z represents a group —CO—, a group —CH(OH)— or the like, R
6
represents a 5- to 15-membered monocyclic, dicyclic or tricyclic saturated or unsaturated heterocyclic group having 1 to 4 nitrogen atoms, oxygen atoms or sulfur atoms, R
2
represents a hydrogen atom or a halogen atom, Y represents a group —O—, a group —CO—, a group —CH(OH)— or a lower alkylene group, and A represents [Formula 2] wherein R
3
represents a hydrogen atom, a lower alkoxy group or the like, p represents 1 or 2, R
4
represents an imidazolyl lower alkyl group or the like.
A new method for the alkyl group introduction at the 3-position of pyridienes is described: Reductive disilylation of pyridine, its 2-methyl, 3-methyl, and 4-methyl derivatives affords the corresponding 1,4-disilyl-1,4-dihydropyridines. In the presence of a catalytic amount of tetrabutylammonium fluoride, these dihydropyridines smoothly react with a variety of aldehydes and ketones to give 3-alkylpyridines
The reaction of 1,4-bis(trimethylsilyl)-1,4-dihydropyridine with aldehydes and ketones in the presence of tetrabutylammonium fluoride offers a convenient method for the preparation of 3-alkylpyridines.