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.
4-(tetrazol-5-yl)-quinazoline derivatives as anti-cancer agent
申请人:Natco Pharma Limited
公开号:US08080558B2
公开(公告)日:2011-12-20
The invention relates to substituted 4-(tetrazol-5-yl)-quinazoline derivatives of the formula-I,
or pharmaceutically-acceptable salts thereof, which possess anti-proliferative activity such as anti-cancer activity and are accordingly useful in methods of treatment of the human or animal body. The invention also relates to processes for the manufacture of substituted 4-(tetrazol-5-yl)-quinazoline derivatives, to pharmaceutical compositions containing the compound and to its use in the manufacture of medicaments for the production of an anti-proliferative effect in a warm-blooded animal such as man.
[EN] NOVEL 4-(TETRAZOL-5-YL)-QUINAZOLINE DERIVATIVES AS ANTI CANCER AGENTS<br/>[FR] NOUVEAUX DÉRIVÉS DE LA 4-(TÉTRAZOL-5-YL)-QUINAZOLINE EN TANT QU'AGENTS ANTI-CANCÉREUX
申请人:NATCO PHARMA LTD
公开号:WO2009057139A3
公开(公告)日:2009-09-24
NOVEL 4-(TETRAZOL-5-YL)-QUINAZOLINE DERIVATIVES AS ANTI CANCER AGENTS
申请人:Natco Pharma Limited
公开号:EP2220054A2
公开(公告)日:2010-08-25
US8080558B2
申请人:——
公开号:US8080558B2
公开(公告)日:2011-12-20
Preparation of Heteroarenecarbonitriles by Reaction of Heteroarene N-Oxides with Trimethylsilyl Cyanide in the Presence of DBU
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.