3,4,6-Substituted pyridazines for treating neuropathic pain and associated syndromes
申请人:Sultzbaugh Lance
公开号:US20070191365A1
公开(公告)日:2007-08-16
The present invention is directed to the use of 3,4,6-substituted pyridazines such as those characterized by structure I for treating conditions such as neuropathic pain among others.
Synthesis of new thiazolidine and imidazolidine derivatives of pharmacological interest
作者:Nadia K. El-Aasar、Khaled F. Saied
DOI:10.1002/jhet.5570450302
日期:2008.5
process between thiourea and/or its derivatives with 3-aroylpropenoic acids. 1H NMR spectra revealed the presence of 1a-c as a tautmeric mixture. The presence of the thiazoline tautmers (1a-c)′ was confirmed by methylating the tautmeric mixture, to the respective methylated derivatives 2-N-methylanilino-5-(2-aryl-2-oxoethyl)-4-oxo-1,3-thiazolines2a-c and 1g-i. Acidic treatment of 1 provided the respective
迄今未知的5-(2-芳基-2-氧代乙基)-4-氧代-1,3-噻唑烷1a-1是通过硫脲和/或其衍生物与3-芳酰基丙酸之间的环加成反应合成的。1 H NMR光谱表明存在1a-c,其为互变异构混合物。通过将tautomer混合物甲基化为相应的甲基化衍生物2- N-甲基苯胺基-5-(2-芳基-2-氧乙基)-4-oxo-1,3来确认噻唑啉tautmers (1a-c) '的存在。噻唑啉2a-c和1g-i。1的酸性处理提供了各自的2-氧代同源物3a-i。当1a-d时k用DMF回流,实现了分子重排,提供了4-氧代-2-硫代氧代咪唑烷异构体4a-d,k。在热乙酸中将4a和4d溴化,得到分别制备的(E,Z)-5-苯甲酰基亚甲基衍生物5a,d。1a-c和4a-c的硫代生成5-芳基-2,3-二氢-2-苯基亚氨基噻吩并[2,3- d ]噻唑6a-c和1-苯基-5-芳基-2,3-二氢-2 -thioxothieno
Process for producing 4-phenyl-4-oxo-2-butenoic ester derivative
申请人:Itoh Isamu
公开号:US20050176994A1
公开(公告)日:2005-08-11
A 4-phenyl-4-oxo-2-butenoate derivative is stably supplied in a short period of time, at low cost, in high purity and on an industrial scale by a process for producing the 4-phenyl-4-oxo-2-butenoate derivative, which comprises simultaneously or continuously reacting a sulfuric ester, an aromatic hydrocarbon and a maleic anhydride derivative.
This invention relates to the E-isomers of butenoic acid derivatives of general formula (la)
as well as to the Z-isomers of general formula (Ib) wherein
R stands for a (-)-menthyl or a (+)-menthyl group, to processes for their preparation and to pharmaceutical compositions containing them.
The compounds possess valuable pharmacological properties, in particular, they exhibit a cytoprotective effect.
本发明涉及通式(la)的丁烯酸衍生物的 E 异构体和通式(Ib)的 Z 异构体(其中 R 代表 (-)- 门基或 (+)- 门基)、它们的制备工艺以及含有它们的药物组合物。 这些化合物具有重要的药理特性,特别是它们具有细胞保护作用。
PROCESS FOR PRODUCING 4-PHENYL-4-OXO-2-BUTENOIC ESTER DERIVATIVE
申请人:Sankio Chemical Co., Ltd.
公开号:EP1505054A1
公开(公告)日:2005-02-09
A 4-phenyl-4-oxo-2-butenoate derivative is stably supplied in a short period of time, at low cost, in high purity and on an industrial scale by a process for producing the 4-phenyl-4-oxo-2-butenoate derivative, which comprises simultaneously or continuously reacting a sulfuric ester, an aromatic hydrocarbon and a maleic anhydride derivative.