Identification of a marine NADPH-dependent aldehyde reductase for chemoselective reduction of aldehydes
摘要:
A putative aldehyde reductase gene from Oceanospirillum sp. MED92 was overexpressed in Escherichia coli. The recombinant protein (OsAR) was characterized as a monomeric NADPH-dependent aldehyde reductase. The kinetic parameters K-m and k(cat) of OsAR were 0.89 +/- 0.08 mM and 11.07 +/- 0.99 s(-1) for benzaldehyde, 0.04 +/- 0.01 mM and 6.05 +/- 1.56 s(-1) for NADPH, respectively. This enzyme exhibited high activity toward a variety of aromatic and aliphatic aldehydes, but no activity toward ketones. As such, it catalyzed the chemoselective reduction of aldehydes in the presence of ketones, as demonstrated by the reduction of 4-acetylbenzaldehyde or the mixture of hexanal and 2-nonanone, showing the application potential of this marine enzyme in such selective reduction of synthetic importance. (C) 2013 Elsevier B.V. All rights reserved.
DIHYDROPYRIDAZINE-3,5-DIONE DERIVATIVE AND PHARMACEUTICALS CONTAINING THE SAME
申请人:CHUGAI SEIYAKU KABUSHIKI KAISHA
公开号:US20160002251A1
公开(公告)日:2016-01-07
The present invention provides a dihydropyridazine-3,5-dione derivative or a salt thereof, or a solvate of the compound or the salt, a pharmaceutical drug, a pharmaceutical composition, a sodium-dependent phosphate transporter inhibitor, and a preventive and/or therapeutic agent for hyperphosphatemia, secondary hyperparathyroidism, chronic renal failure, chronic kidney disease, and arteriosclerosis associated with vascular calcification comprising the compound as an active ingredient, and a method for prevention and/or treatment.
PROCESS FOR PREPARING UNSYMMETRIC SECONDARY TERT-BUTYLAMINES IN THE LIQUID PHASE
申请人:WIGBERS Christof Wilhelm
公开号:US20110251433A1
公开(公告)日:2011-10-13
The present application relates to a process for preparing unsymmetric secondary tert-butylamines which, as well as the tert-butyl radical, also comprise an alkyl, cycloalkyl or benzyl radical. They are prepared by reacting corresponding aldehydes with tert-butylamine and hydrogen in the presence of hydrogenation catalysts (reductive amination) in the liquid phase.
[EN] SULFONAMIDE COMPOUNDS HAVING TNAP INHIBITORY ACTIVITY<br/>[FR] COMPOSÉS DE SULFONAMIDE AYANT UNE ACTIVITÉ INHIBITRICE DE TNAP
申请人:DAIICHI SANKYO CO LTD
公开号:WO2018119444A1
公开(公告)日:2018-06-28
The present invention relates to a compound or a pharmacologically acceptable salt thereof having excellent tissue non-specific alkaline phosphatase inhibitory activity. The present invention provides a compound represented by the formula (I) or a pharmacologically acceptable salt thereof.
Processes for preparing beta-hydroxy-ketones and alpha,beta-unsaturated ketones
申请人:Barnicki Donald Scott
公开号:US20050004401A1
公开(公告)日:2005-01-06
Processes for producing β-hydroxy-ketones and α,β-unsaturated ketones are disclosed which comprise the crossed condensation of an aldehyde with a ketone in the presence of a hydroxide or alkoxide of alkali metal or an alkaline earth metal as catalyst. The products of the process, β-hydroxy-ketones and α,β-unsaturated ketones, are useful for the preparation of many commercially important products in the chemical process industries including solvents, drug intermediates, flavors and fragrances, other specialty chemical intermediates.
[EN] OXAZEPINE DERIVATIVES HAVING TNAP INHIBITORY ACTIVITY<br/>[FR] DÉRIVÉS D'OXAZÉPINE AYANT UNE ACTIVITÉ INHIBITRICE DE TNAP
申请人:DAIICHI SANKYO CO LTD
公开号:WO2018119449A1
公开(公告)日:2018-06-28
The present invention relates to a compound or a pharmacologically acceptable salt thereof having excellent tissue non-specific alkaline phosphatase inhibitory activity. The present invention provides a compound represented by the formula (I) or a pharmacologically acceptable salt thereof.