在氮原子上被不同的π-亲核试剂取代的噻唑烷二酮3-8的区域选择性NaBH 4 / H +还原以良好的产率提供羟基内酰胺9-14。后面的化合物是α-酰化铵离子16的极好的前体,可以在HCOOH中进行立体选择环化,以产生具有不同结构的新型杂环系统。由于闭环中的立体电子控制,很容易实现立体选择性合成,例如8a到24的转换。
An improved process for hydrogenation of 5-(substituted Benzylidene) 2,4- Thiazolidine Dione compounds to give corresponding ( +/- ) 5- (substituted Benzyl ) 2,4-Thiazolidine Dione
申请人:Cadila Pharmaceuticals Limited
公开号:EP1903042A3
公开(公告)日:2008-05-28
The present provides a preparation of (+/-) -5- [substituted. phenyl methyl ] - 2,4-thiazolidinediones from 5-[ substituted benzylidene ]-2,4-thiazolidinediones by catalytic hydrogenation using precious metal catalyst, using DMF or formic acid [ or aqueous formic acid] and perchloric acid.
Reeve,W.; Coley,W.R., Canadian Journal of Chemistry, 1979, vol. 57, p. 444 - 449
作者:Reeve,W.、Coley,W.R.
DOI:——
日期:——
HAMERSMA, J. A. M.;SPECKAMP, W. N., TETRAHEDRON, 1982, 38, N 22, 3255-3266
作者:HAMERSMA, J. A. M.、SPECKAMP, W. N.
DOI:——
日期:——
REERE W.; COLEY W. R., CAN. J. CHEM., 1979, 57, NO 4, 444-449
作者:REERE W.、 COLEY W. R.
DOI:——
日期:——
[EN] 5-DEUTERO-2,4-THIAZOLIDINEDIONE AND 5-DEUTERO-2,4-OXAZOLIDINEDIONE DERIVATIVES AND COMPOSITIONS COMPRISING AND METHODS OF USING THE SAME<br/>[FR] DÉRIVÉS DE 5-DEUTÉRO-2,4-THIAZOLIDINEDIONE ET 5-DEUTÉRO-2,4-OXAZOLIDINEDIONE, COMPOSITIONS LES COMPRENANT ET LEUR PROCÉDÉS D'UTILISATION
申请人:DEUTERX LLC
公开号:WO2014121036A1
公开(公告)日:2014-08-07
The invention provides 5-deuterium enriched 2,4-thiazolidinediones and 2,4- oxazolidinediones, such as 5-(4-((6-(4-amino-3,5-dimethylphenoxy)-l-methyl-lH- benzo[d]imidazol-2-yl)methoxy)benzyl)-5-deutero-thiazolidine-2,4-dione, deuterated derivatives thereof, stereoisomers thereof, pharmaceutically acceptable salt forms thereof, and methods of treating medical disorders, such as cancer, using the same.