Unexpected formation of aryl dialkyl carbinol as a side product from the reaction of methoxyarylaldehydes with Grignard reagents
作者:Anuj Sharma、Bhupendra P. Joshi、Narendra P. Singh、Arun K. Sinha
DOI:10.1016/j.tet.2005.10.051
日期:2006.1
In the attempted formation of secondary aryl alkyl carbinols from the reaction of methoxyarylaldehydes with Grignard reagents, aryl dialkyl carbinols were formed as unexpected side products. A mechanism for their formation is proposed.
including the particularly simple divinylglycine, which is not easily accessible by using conventional methods. A straightforwardsynthesis of symmetrically α,α-disubstituted α-amino acids is presented. The key step of this process relies on the efficient double addition of Grignard reagents to acyl cyanohydrins to provide N-acyl amino alcohols selectively in good yields. The chemoselectivity of the reaction
Method of increasing neutrophil production using 2,3-benzodiazepines
申请人:Vela Pharmaceuticals, Inc.
公开号:US20040138210A1
公开(公告)日:2004-07-15
Compounds according to formula I:
1
wherein R
1
, R
2
, R
3
, R
4
, R
5
and n are as defined herein, are administered to increase neutrophil levels in mammals.
Treatment of inflammatory disorders with 2,3- benzodiazepines
申请人:Vela Pharmaceuticals, Inc.
公开号:US20040138209A1
公开(公告)日:2004-07-15
Compounds according to formula I:
1
wherein R
1
, R
2
, R
3
, R
4
, R
5
and n are as defined herein, are administered for the treatment of inflammatory disorders, particularly inflammatory disorders mediated by LTB
4
,
Treatment of irritable bowel syndrome and nonulcer dyspepsia with substituted 2,3-benzodiazepines
申请人:Vela Pharmaceuticals, Inc.
公开号:US06638928B1
公开(公告)日:2003-10-28
Compounds according to formula I:
are disclosed wherein R1, R2, R3, R4, R5 and R6 as defined herein, are administered for irritable bowel syndrome and nonulcer dyspepsia.