(R)-Amination mediated by (R)-specific ω-transaminases generally requires costly d-alanine in excess to obtain the desired chiralamines in high yield. Herein, a one-pot, trienzymatic cascade comprising an (R)-specific ω-transaminase, an amine dehydrogenase, and a formate dehydrogenase was developed for the economical and eco-friendly synthesis of (R)-chiral amines. Using inexpensive ammonium formate as the
Asymmetric Hydrogenation Using Rhodium Complexes Generated from Mixtures of Monodentate Neutral and Anionic Phosphorus Ligands
作者:Dominik J. Frank、Axel Franzke、Andreas Pfaltz
DOI:10.1002/chem.201202408
日期:2013.2.11
anionic phosphorus ligands was synthesized and evaluated in the asymmetric rhodium‐catalyzedhydrogenation of functionalizedolefins by using either catalysts containing identical ligands or catalysts generated from mixtures of two different ligands. We expected that the combination of an anionic ligand with a neutral ligand would favor the formation of hetero over homo bis‐ligand complexes due to charge
SULFAMIDE AND SULFAMATE DERIVATIVES AS HISTONE DEACETYLASE INHIBITORS
申请人:Smil David
公开号:US20070293530A1
公开(公告)日:2007-12-20
This invention relates to compounds for the inhibition of histone deacetylase. More particularly, the invention provides for compounds of formula (I), and racemic and scalemic mixtures, diastereomers and enantiomers thereof:
or an N-oxide, hydrate, solvate, pharmaceutically acceptable salt, prodrug or complex thereof, wherein Y, L, Z, W, M, R
a
, R
b
and R
c
are as defined in the specification.
这项发明涉及用于抑制组蛋白去乙酰化酶的化合物。更具体地,该发明提供了符合式(I)的化合物,以及它们的外消旋和内消旋混合物、非对映体和对映体:
或其N-氧化物、水合物、溶剂合物、药学上可接受的盐、前药或其复合物,其中Y、L、Z、W、M、R
a
、R
b
和R
c
如规范中所定义。
Monodentate Phosphoramidites: A Breakthrough in Rhodium-Catalysed Asymmetric Hydrogenation of Olefins
作者:Michel van den Berg、Adriaan J. Minnaard、Robert M. Haak、Michel Leeman、Ebe P. Schudde、Auke Meetsma、Ben L. Feringa、André H. M. de Vries、C. Elizabeth P. Maljaars、Charlotte E. Willans、David Hyett、Jeroen A. F. Boogers、Hubertus J. W. Henderickx、Johannes G. de Vries
DOI:10.1002/adsc.200390026
日期:2003.1
ligands for the rhodium-catalysed asymmetrichydrogenation of olefins. Very high enantioselectivities were obtained with MonoPhos (7a) the simplest member of this class, a ligand that is prepared in a single step from BINOL and HMPT. Turnover numbers up to 6000 have been obtained in the hydrogenation of dehydroamino acid derivatives. Enantioselectivities in the hydrogenation of dehydroamino acids are solvent
Chroman compounds and derivatives of Formula I are useful inhibitors of TRPM8. Such compounds are useful in treating a number of TRPM8 mediated disorders and conditions and may be used to prepare medicaments and pharmaceutical compositions useful for treating such disorders and conditions. Examples of such disorders include, but are not limited to, migraines and neuropathic pain. Compounds of Formula I have the following structure:
where the definitions of the variables are provided herein.
Formula I的Chroman化合物和衍生物是TRPM8的有用抑制剂。这些化合物在治疗多种由TRPM8介导的疾病和症状方面具有用途,并可用于制备治疗这些疾病和症状的药物和药物组合物。这些疾病的例子包括,但不限于,偏头痛和神经病性疼痛。Formula I的化合物具有以下结构:变量的定义在此提供。