DERIVATIVES OF 2-PYRIDIN-2-YL-PYRAZOL-3(2H)-ONE, PREPARATION AND THERAPEUTIC USE THEREOF AS HIF ACTIVATORS
申请人:ALTENBURGER Jean-Michel
公开号:US20110294788A1
公开(公告)日:2011-12-01
The present invention relates to novel substituted dihydropyrazolone derivatives, to their preparation and to their therapeutic use as activators of the transcription factor HIF.
本发明涉及新型取代二氢吡唑酮衍生物,其制备以及作为转录因子HIF激活剂的治疗用途。
Optically Active N- and C-Terminal Building Blocks for the Synthesis of Peptidyl Olefin Peptidomimetics
peptidomimetics serve as biologically active compounds or as intermediates for other peptidyl isosteres. The N-terminal side of the C=C bond could be easily prepared in an opticallypure form from α-amino acids. Synthesis of C-terminal building blocks in an opticallypure form is more challenging. We developed a chemoenzymatic stereoselective approach to such optically active C-terminal building blocks to
肽基烯烃肽模拟物用作生物活性化合物或用作其他肽基等排体的中间体。C=C 键的 N 端侧可以很容易地从 α-氨基酸以光学纯的形式制备。以光学纯形式合成 C 端结构单元更具挑战性。我们开发了一种化学酶立体选择性方法,用于通过各种反应组装成肽基烯烃的光学活性 C 端结构单元。它们包括亲电子醛和亲核砜、鏻盐、膦酸盐和二硒化物。前手性二酯到相应羟基酯的关键酶水解引入了光学活性。随后化学反应的顺序,无论是保护-水解-功能化还是功能化-水解-保护,
New pseudodimeric aurones as palm pocket inhibitors of Hepatitis C virus RNA-dependent RNA polymerase
polymerase (RdRp) is a key enzyme for HepatitisCVirus (HCV) replication. In addition to the catalytic site, this enzyme is characterized by the presence of at least four allosteric pockets making it an interesting target for development of inhibitors as potential anti-HCV drugs. Based on a previous study showing the potential of the naturally occurring aurones as inhibitors of NS5B, we pursued our efforts
Prodrug derivatives of acids using alcohols with homotopic hydroxy groups and methods for their preparation and use
申请人:deLong A. Mitchell
公开号:US20070254920A1
公开(公告)日:2007-11-01
This invention relates to novel homotopic prodrugs and medicaments and methods for their preparation, testing and use. In one embodiment, the homotopic prodrug has the general formula
wherein
is a biologically-active moiety comprising a carboxylic acid functional group, and R
b
is a homotopically-symmetrical alcohol bonded to the biologically-active moiety through the carboxylic acid functional group to form an ester linkage, as well as optical isomers, enantiomers, pharmaceutically acceptable salts, biohydrolyzable amides, esters, and imides thereof and combinations thereof.
这项发明涉及新型同位素前药、药物以及其制备、测试和使用方法。在一个实施例中,同位素前药具有一般公式
其中
是包含羧酸官能团的生物活性基团,而 R
b
是通过羧酸官能团与生物活性基团形成酯键的同位对称醇,以及其光学异构体、对映异构体、药用可接受盐、生物水解酰胺、酯、亚酰胺及其组合物。
Optically Active γ-Hydroxy Sulfone Julia Reagents for the Synthesis of Peptidyl Olefin Peptidomimetics
peptidomimetics serve as biologically active compounds or as intermediates for other peptidyl isosteres. We developed a chemoenzymatic stereoselective approach to opticallyactive γ-hydroxy sulfones to be assembled into peptidyl olefins by the Julia reaction. Key enzymatic hydrolysis of prochiral diesters to the corresponding hydroxy esters introduces optical activity. The sequence of the subsequent