- Peroxygenase-Catalysed Epoxidation of Styrene Derivatives in Neat Reaction Media
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Biocatalytic oxyfunctionalisation reactions are traditionally conducted in aqueous media limiting their production yield. Here we report the application of a peroxygenase in neat reaction conditions reaching product concentrations of up to 360 mM.
- Alcalde, Miguel,Arends, Isabel W. C. E.,Hollmann, Frank,Paul, Caroline E.,Rauch, Marine C. R.,Tieves, Florian
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- Synthesis of Arylacetaldehydes by Iridium-Catalyzed Arylation of Vinylene Carbonate with Arylboronic Acids
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The one-step synthesis of arylacetaldehydes by carbon–carbon bond formation between formylmethyl and aryl groups has been realized by the reaction of vinylene carbonate with arylboronic acids in the presence of an iridium/bisphosphine catalyst and a catalytic amount of tetrahydroxydiboron.
- Wang, Zhe,Xue, Fei,Hayashi, Tamio
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supporting information
p. 11054 - 11057
(2019/07/17)
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- C8-substituted pyrido[3,4-d]pyrimidin-4(3H)-ones: Studies towards the identification of potent, cell penetrant Jumonji C domain containing histone lysine demethylase 4 subfamily (KDM4)inhibitors, compound profiling in cell-based target engagement assays
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Residues in the histone substrate binding sites that differ between the KDM4 and KDM5 subfamilies were identified. Subsequently, a C8-substituted pyrido[3,4-d]pyrimidin-4(3H)-one series was designed to rationally exploit these residue differences between
- Le Bihan, Yann-Va?,Lanigan, Rachel M.,Atrash, Butrus,McLaughlin, Mark G.,Velupillai, Srikannathasan,Malcolm, Andrew G.,England, Katherine S.,Ruda, Gian Filippo,Mok, N. Yi,Tumber, Anthony,Tomlin, Kathy,Saville, Harry,Shehu, Erald,McAndrew, Craig,Carmichael, LeAnne,Bennett, James M.,Jeganathan, Fiona,Eve, Paul,Donovan, Adam,Hayes, Angela,Wood, Francesca,Raynaud, Florence I.,Fedorov, Oleg,Brennan, Paul E.,Burke, Rosemary,van Montfort, Rob L.M.,Rossanese, Olivia W.,Blagg, Julian,Bavetsias, Vassilios
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supporting information
p. 316 - 337
(2019/06/05)
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- RETINOID COMPOUND, PREPARATION METHOD THEREFOR, INTERMEDIATES THEREOF AND APPLICATION THEREOF
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Disclosed are a retinoid compound, a preparation method therefor, intermediates thereof and an application thereof. The retinoid compound I of the present invention has a good tumor growth inhibition rate.
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Paragraph 0128; 0129
(2019/01/29)
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- Compound with 2-aminopyrimidine structure as well as preparation method and purpose thereof
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The invention provides a compound of a 2-aminopyrimidine structure shown as a general formula (1), or a stereisomer, enantiomers or medically acceptable salt of the compound, a preparation method of the compound, a medicine composition containing the composition or a purpose of the composition. The compound shown as the general formula (1) can be used for preparing NIK kinase inhibitors, and can be used for preventing and/or treating diseases relevant to NIK kinase, particularly cancer and metabolic diseases, such as B-cell dysfunction related cancer such as multiple myeloma, lymphocyte carcinoma, diffuse large B cell lymphoma of liver cancer, hodgkin lymphoma and chronic lymphocytic leukemia, prostatic cancer, liver cancer, intestinal cancer, medicine induced liver damage, alcohol inducedliver damage, toxic induced acute liver injury, chronic liver inflammation and the like. The general formula (1) is shown in the description.
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Paragraph 0104-0107
(2019/06/08)
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- Photochemical Homologation for the Preparation of Aliphatic Aldehydes in Flow
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Cheap and readily available aqueous formaldehyde was used as a formylating reagent in a homologation reaction with nonstabilized diazo compounds, enabled by UV photolysis of bench-stable oxadiazolines in a flow photoreactor. Various aliphatic aldehydes were synthesized along with the corresponding derivatized alcohols and benzimidazoles. No transition-metal catalyst or additive was required to affect the reaction, which proceeded at room temperature in 80 min.
- Chen, Yiding,Leonardi, Marco,Dingwall, Paul,Labes, Ricardo,Pasau, Patrick,Blakemore, David C.,Ley, Steven V.
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p. 15558 - 15568
(2019/01/04)
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- Biocatalytic Formal Anti-Markovnikov Hydroamination and Hydration of Aryl Alkenes
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Biocatalytic anti-Markovnikov alkene hydroamination and hydration were achieved based on two concepts involving enzyme cascades: epoxidation-isomerization-amination for hydroamination and epoxidation-isomerization-reduction for hydration. An Escherichia coli strain coexpressing styrene monooxygenase (SMO), styrene oxide isomerase (SOI), ω-transaminase (CvTA), and alanine dehydrogenase (AlaDH) catalyzed the hydroamination of 12 aryl alkenes to give the corresponding valuable terminal amines in high conversion (many ≥86%) and exclusive anti-Markovnikov selectivity (>99:1). Another E. coli strain coexpressing SMO, SOI, and phenylacetaldehyde reductase (PAR) catalyzed the hydration of 12 aryl alkenes to the corresponding useful terminal alcohols in high conversion (many ≥80%) and very high anti-Markovnikov selectivity (>99:1). Importantly, SOI was discovered for stereoselective isomerization of a chiral epoxide to a chiral aldehyde, providing some insights on enzymatic epoxide rearrangement. Harnessing this stereoselective rearrangement, highly enantioselective anti-Markovnikov hydroamination and hydration were demonstrated to convert α-methylstyrene to the corresponding (S)-amine and (S)-alcohol in 84-81% conversion with 97-92% ee, respectively. The biocatalytic anti-Markovnikov hydroamination and hydration of alkenes, utilizing cheap and nontoxic chemicals (O2, NH3, and glucose) and cells, provide an environmentally friendly, highly selective, and high-yielding synthesis of terminal amines and alcohols.
- Wu, Shuke,Liu, Ji,Li, Zhi
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p. 5225 - 5233
(2017/08/17)
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- Efficient epoxide isomerization within a self-assembled hexameric organic capsule
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The isomerization of epoxides to the corresponding carbonyl compounds is efficiently catalyzed by the supramolecular organic nano-capsule formed by the self-assembly of six resorcin[4]arene units. The capsule provides a combination of weak Br?nsted acidity and a suitable nano-environment that favors the metal-free isomerization reaction.
- Caneva, Thomas,Sperni, Laura,Strukul, Giorgio,Scarso, Alessandro
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p. 83505 - 83509
(2016/11/01)
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- Maleimide-assisted anti-Markovnikov Wacker-type oxidation of vinylarenes using molecular oxygen as a terminal oxidant
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Arylacetaldehydes were successfully synthesized by the anti-Markovnikov Wacker-type oxidation of vinylarenes using 1 atm O2 as a terminal oxidant under mild conditions. Electron-deficient alkenes, such as maleic anhydride and maleimides, were effective additives and would operate as ligands to stabilize the Pd(0) species during the reaction.
- Nakaoka, Sonoe,Murakami, Yuka,Kataoka, Yasutaka,Ura, Yasuyuki
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supporting information
p. 335 - 338
(2016/01/09)
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- Hypoiodite-catalyzed regioselective oxidation of alkenes: An expeditious access to aldehydes in aqueous micellar media
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A highly anti-Markovnikov selective oxidation of alkenes based on in situ generated hypoiodite catalysis in aqueous micellar media under mild conditions has been described. This novel catalytic system realizes an efficient synthesis of aldehydes from alkenes in an economically viable and environmentally safe fashion. The preliminary mechanistic studies suggest that the reaction proceeds via tandem iodofunctionalization/1,2-aryl or alkyl migration. The scope and limitations of this tandem process are demonstrated with various mono- and disubstituted (terminal and internal) olefins.
- Swamy, Peraka,Reddy, Marri Mahender,Naresh, Mameda,Kumar, Macharla Arun,Srujana, Kodumuri,Durgaiah, Chevella,Narender, Nama
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p. 1125 - 1130
(2015/04/22)
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- HETEROCYCLIC MODULATORS OF HIF ACTIVITY FOR TREATMENT OF DISEASE
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The present invention relates to compounds and methods which may be useful as inhibitors of HIF pathway activity for the treatment or prevention of cancer and other hypoxia-mediated diseases.
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- Design and synthesis of conformationally restricted inhibitors of active thrombin activatable fibrinolysis inhibitor (TAFIa)
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A series of 4,5,6,7-tetrahydro-1H-benzimidazole-5-carboxylic acid and 5,6,7,8-tetrahydroimidazo[1,2-a]pyridine-7-carboxylic acid derivatives designed as inhibitors of TAFIa has been prepared via a common hydrogenation-alkylation sequence starting from the appropriate benzimidazole and imidazopyridine system. We present a successful design strategy using a conformational restriction approach resulting in potent and selective inhibitors of TAFIa. The X-ray structure of compound 5 in complex with a H333Y/H335Q double mutant TAFI indicate that the conformational restriction is responsible for the observed potency increase.
- Brink, Mikael,Dahlen, Anders,Olsson, Thomas,Polla, Magnus,Svensson, Tor
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p. 2261 - 2268
(2014/04/17)
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- Achiral pyrazinone-based inhibitors of the hepatitis C virus NS3 protease and drug-resistant variants with elongated substituents directed toward the S2 pocket
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Herein we describe the design, synthesis, inhibitory potency, and pharmacokinetic properties of a novel class of achiral peptidomimetic HCV NS3 protease inhibitors. The compounds are based on a dipeptidomimetic pyrazinone glycine P3P2 building block in combination with an aromatic acyl sulfonamide in the P1P1′ position. Structure-activity relationship data and molecular modeling support occupancy of the S2 pocket from elongated R6 substituents on the 2(1H)-pyrazinone core and several inhibitors with improved inhibitory potency down to Ki = 0.11 μM were identified. A major goal with the design was to produce inhibitors structurally dissimilar to the di- and tripeptide-based HCV protease inhibitors in advanced stages of development for which cross-resistance might be an issue. Therefore, the retained and improved inhibitory potency against the drug-resistant variants A156T, D168V, and R155K further strengthen the potential of this class of inhibitors. A number of the inhibitors were tested in in vitro preclinical profiling assays to evaluate their apparent pharmacokinetic properties. The various R6 substituents were found to have a major influence on solubility, metabolic stability, and cell permeability.
- Gising, Johan,Belfrage, Anna Karin,Alogheli, Hiba,Ehrenberg, Angelica,?kerblom, Eva,Svensson, Richard,Artursson, Per,Karlén, Anders,Danielson, U. Helena,Larhed, Mats,Sandstr?m, Anja
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supporting information
p. 1790 - 1801
(2014/04/03)
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- Catalysed anti-Markovnikov oxidation of terminal aryl alkenes to aldehydes and transformation of methyl aryl tertiary amines to formamides with H2O2 as a terminal oxidant
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Anti-Markovnikov oxidation of terminal aryl alkenes to aldehydes and transformation of N-methyl aryl tertiary amines to formamides with H2O2 as a terminal oxidant under mild conditions have been achieved with moderate to good product yields using [FeIII(TF4DMAP)OTf] as catalyst. This journal is
- Du, Yi-Dan,Tse, Chun-Wai,Xu, Zhen-Jiang,Liu, Yungen,Che, Chi-Ming
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supporting information
p. 12669 - 12672
(2015/05/20)
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- Selective oxidation of terminal aryl and aliphatic alkenes to aldehydes catalyzed by iron(iii) porphyrins with triflate as a counter anion
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[Fe(Por)CF3SO3] (Por = porphyrin dianion) can efficiently catalyze selective oxidation of terminal aryl alkenes and aliphatic alkenes to aldehydes in good to high yields under mild conditions.
- Chen, Guo-Qiang,Xu, Zhen-Jiang,Zhou, Cong-Ying,Che, Chi-Ming
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supporting information; experimental part
p. 10963 - 10965
(2011/11/06)
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- SUBSTITUTED THIOPHENECARBOXAMIDES AS IKK-BETA SERINE-, THREONINE-PROTEIN KINASE INHIBITORS
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Compounds of formula (IA) or (IB) are IKK inhibitors useful in the treatment of autoimmune and inflammatory diseases: wherein R7 is hydrogen or optionally substituted (C1-C6)alkyl; A is an optionally substituted aryl or heteroaryl of 5-13 ring atoms; Z is a radical of formula R1C( R2)(R3)NH-Y-L1-X1-(CH2)z- wherein R1 is a carboxylic acid group (-COOH), or an ester group which is hydrolysable by one or more intracellular esterase enzymes to a carboxylic acid group; and R2 and R3 independently represent the side chain of a natural or non-natural alpha amino acid but neither of R2 and R3 is hydrogen, or R2 and R3 taken together with the carbon atom to which they are attached form a C3-C7 cycloalkyl ring, and z, Y, L1 and X1 are as defined in the claims.
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Page/Page column 30-31
(2009/12/05)
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- AMINOTHIAZOLE DERIVATIVES AS INHIBITORS OF MARK
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Compounds of formula (I): inhibit microtubule affinity regulating kinase (MARK) and therefore find use in treatment of neurodegenerative diseases associated with hyperphosphorylation of tau.
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Page/Page column 20
(2008/06/13)
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- The diazo route to diazonamide A. Studies on the indole bis-oxazole fragment
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Various approaches to the indole bis-oxazole fragment of the marine secondary metabolite diazonamide A are described, all of which feature dirhodium(II)-catalyzed reactions of diazocarbonyl compounds in key steps. Thus, 3-bromophenylacetaldehyde is conver
- Davies, James R.,Kane, Peter D.,Moody, Christopher J.
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p. 7305 - 7316
(2007/10/03)
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- TRIAZOLO-PYRIDAZINE COMPOUNDS AND DERIVATIVES THEREOF USEFUL IN THE TREATMENT OF NEUROPATHIC PAIN
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The present invention is directed to a method of use of triazolo-pyridazine compounds in the treatment of neuropathic pain. The present invention is also directed to the use of triazolo-pyridazine compounds in the treatment of psychiatric and mood disorders such as, for example, schizophrenia, anxiety, depression, bipolar disorders, and panic, as well as in the treatment of pain, Parkinson’s disease, cognitive dysfunction, epilepsy, circadian rhythm and sleep disorders - such as shift-work induced sleep disorder and jet-lag, drug addiction, drug abuse, drug withdrawal and other diseases. The present invention is also directed to novel triazolo-pyridazine compounds that selectively bind to α2δ-1 subunit of Ca channels.
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Page/Page column 31
(2010/02/11)
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- THIAZOLE AND PYRAZOLE DERIVATIVES AS FLT-3 KINASE INHIBITORS
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The invention relates to thiazole and pyrazole derivatives of formula (I) wherein Q is S and X is C, or Q is CH and X is N; R1 is unsubtituted or substituted phenyl; and R2 is unsubstituted or substituted aryl or heteroaryl; oa a salt of the said compounds, and to processes for the preparation thereof, to pharmaceutical compositions comprising such derivatives and to the use of such derivatives for the preparation of pharmaceutical compositions for the treatment especially of a proliferative disease, such as a tumour disease, in particular such diseases which respond to an inhibition of the FIt-3 kinase.
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Page/Page column 38
(2010/02/11)
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- A new pyridazine series of GABAA α5 ligands
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Screening of the Merck compound collection identified 6 as an unusually simple, low molecular weight hit with moderate affinity for GABAA receptors. The structural novelty of 6, compared to our advanced series of GABAA α5 inverse ago
- Van Niel, Monique B.,Wilson, Kevin,Adkins, Charles H.,Atack, John R.,Castro, José L.,Clarke, Dawn E.,Fletcher, Stephen,Gerhard, Ute,Mackey, Mark M.,Malpas, Sallie,Maubach, Karen,Newman, Robert,O'Connor, Desmond,Pillai, Gopalan V.,Simpson, Peter B.,Thomas, Steven R.,MacLeod, Angus M.
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p. 6004 - 6011
(2007/10/03)
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- PHENYLPYRIDAZINE DERIVATIVES AS LIGANDS FOR GABA RECEPTORS
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A class of 4-phenylpyridazine derivatives of Formula (I), being selective ligands for GABAA receptors, in particular having high affinity for the α2 and/or α3 and or α5 subunit thereof, are accordingly of benefit in the treatment and/or prevent
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- Method for inhibiting gene expression promoted by AP1 protein with RAR beta selective retinoids and method for treatment of diseases and conditions with such retinoids
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Retinoid compounds which repress expression of the gene promoted by AP1 protein but which do not significantly activate expression of the genes having RA-responsive elements in their promoter region through RAR alpha and RAR GAMMA receptor subtypes, are u
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