Abstract: Substituted 1H-imidazo[4,5-b]pyridinyl and 2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridinyl heterocyclic compounds, which are useful as inhibitors of BET protein function by binding to bromodomains, compositions comprising said compounds, and their use in therapy are disclosed herein. These compounds are useful in the treatment of diseases and conditions, such as, cancer, autoimmune diseases, inflammation and cardiovascular diseases.
Abstract: Compounds active on the receptor protein tyrosine kinases c-kit an or c-fms are provided herewith. Also provided herewith are compositions useful for treatment of c-kit mediated diseases or conditions and/or c-fms-mediated diseases or conditions, and methods for the use thereof.
Type:
Application
Filed:
October 1, 2018
Publication date:
August 29, 2019
Inventors:
Jiazhong Zhang, Prabha N. Ibrahim, Dean R. Artis, Ryan Bremer, Guoxian Wu, Hongyao Zhu, Marika Nespi, Chao Zhang
Abstract: The present invention provides compounds of formula I: which are useful as modulators of GPR6, pharmaceutical compositions thereof, methods for treatment of conditions associated with GPR6, processes for making the compounds and intermediates thereof.
Type:
Application
Filed:
November 30, 2018
Publication date:
August 29, 2019
Inventors:
Stephen Hitchcock, Maria Hopkins, Shota Kikuchi, Holger Monenschein, Holly Reichard, Huikai Sun, Todd Macklin
Abstract: This present disclosure relates to compounds with ferroptosis inducing activity, a method of treating a subject with cancer with the compounds, and combination treatments with a second therapeutic agent.
Abstract: The present invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof; Wherein R1, R3-R6, X2 and X3 are as defined herein, a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.
Type:
Application
Filed:
March 1, 2019
Publication date:
August 29, 2019
Inventors:
Guillaume BARBE, Gregory Raymond BEBERNITZ, Sicong GENG, Hatice Belgin GULGEZE EFTHYMIOU, Lv LIAO, Fupeng MA, Ruowei MO, David Thomas PARKER, Yunshan PENG, Stefan PEUKERT, Ken YAMADA, Kayo YASOSHIMA
Abstract: The present invention relates to azabenzimidazole derivatives of Formula (I) wherein the variables have the meaning defined in the claims. The compounds according to the present invention are useful as pI3K? inhibitors. The invention further relates to pharmaceutical compositions comprising said compounds as an active ingredient as well as the use of said compounds as a medicament.
Type:
Application
Filed:
June 15, 2017
Publication date:
August 29, 2019
Inventors:
Isabelle Noelle Constance Pilatte, Laurence Anne Mevellec, Patrick Rene Angibaud, Sophie Coupa, Christophe Gabriel Marcel Demestre, Lieven Meerpoel, Guillaume Jean Maurice Mercey, Christophe Meyer, Elisabeth Therese Jeanne Pasquier, Olivier Alexis Georges Querolle, Virginie Sophie Poncelet, Didier Jean-Claude Berthelot
Abstract: The present application relates to novel 7-substituted 1-arylnaphthyridine-3-carboxamides, to processes for their preparation, to their use, alone or in combinations, for the treatment and/or prevention of diseases, and to their use for the production of medicaments for the treatment and/or prevention of diseases, in particular for the treatment and/or prevention of cardiovascular disorders and/or renal disorders.
Inventors:
Henrik TELLER, Alexandros VAKALOPOULOS, Melissa BOULTADAKIS ARAPINIS, Alexander STRAUB, Hanna TINEL, Markus BRECHMANN, Matthias Beat WITTWER, Maximilian Andreas KULLMANN, Till FREUDENBERGER, Thomas MONDRITZKI, Tobias MARQUARDT
Abstract: The present invention relates to a novel compound and an organic electroluminescent device including the same, and the compound according to the present invention is used in an organic material layer of an organic electroluminescent device, preferably an electron transport layer or a hole blocking layer, and may increase luminous efficiency, driving voltage and lifespan of the organic electroluminescent device.
Abstract: Compositions and methods are provided for the inhibition of the function of RNA guided endonucleases, including the identification and use of such inhibitors.
Type:
Application
Filed:
October 31, 2017
Publication date:
August 29, 2019
Applicants:
PRESIDENT AND FELLOWS OF HARVARD COLLEGE, THE BRIGHAM AND WOMEN'S HOSPITAL, INC., THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventors:
AMIT CHOUDHARY, PENG WU, BASUDEB MAJI, ELISA FRANCO, HARI K.K. SUBRAMANIAN
Abstract: The present invention provides compounds of Formula (I): or stereoisomers, tautomers, or pharmaceutically acceptable salts or solvates thereof, wherein all the variables are as defined herein. These compounds are antagonists to ?v-containing integrins. This invention also relates to pharmaceutical compositions comprising these compounds and methods of treating a disease, disorder, or condition associated with dysregulation of ay-containing integrins, such as pathological fibrosis, transplant rejection, cancer, osteoporosis, and inflammatory disorders, by using the compounds and pharmaceutical compositions.
Type:
Application
Filed:
November 7, 2017
Publication date:
August 29, 2019
Applicant:
BRISTOL-MYERS SQUIBB COMPANY
Inventors:
Guohua ZHAO, Pratik DEVASTHALE, Xiang-Yang YE, Kumaravel SELVAKUMAR, Suresh DHANUSU, Palanikumar BALASUBRAMANIAN, Leatte R. GUERNON, Rita CIVIELLO, Xiaojun HAN, Michael Frederick PARKER, Swanee E. JACUTIN-PORTE
Abstract: Disclosed is a preparation method for a Palbociclib free base crystal form A as shown in Formula I, comprising the following steps: treating a Palbociclib free base and/or a Palbociclib salt compound by using an inorganic base in a water solvent at the temperature of 35 to 100?C. to obtain a Palbociclib free base crystal form A, the water solvent being water or mixed solvent obtained by water and an organic solvent capable of being mixed and disclosed in the water. Also disclosed is a preparation method for a Palbociclib free base crystal form B, comprising the following steps: treating a Palbociclib salt compound by using an inorganic base in a water solvent at the temperature of 0 to 20° C. to obtain a Palbociclib free crystal form B, the water solvent being water or a mixed solvent obtained by water and an organic solvent capable of being mixed and dissolved in the water. The method is safe and convenient in operation and low in pollution, and facilitates industrial production.
Type:
Application
Filed:
May 7, 2019
Publication date:
August 29, 2019
Inventors:
Haisheng Fan, Xiaowen Guo, Luning Huang, Hong Gu
Abstract: The present invention relates to fluorinated compounds of formula I and methods of synthesizing these compounds. The present invention also relates to pharmaceutical compositions containing the fluorinated compounds of the invention, and methods of treating macular degeneration, diabetic retinopathy (DR), macular edema, diabetic macular edema (DME), and macular edema following retinal vein occlusion (RVO), by administering these compounds and pharmaceutical compositions to subjects in need thereof.
Type:
Application
Filed:
May 13, 2019
Publication date:
August 29, 2019
Inventors:
Ben C. ASKEW, Richard HEIDEBRECHT, Takeru FURUYA, Mark E. DUGGAN, D. Scott EDWARDS
Abstract: Provided herein are compound of Formula I-IV and pharmaceutically acceptable salts thereof which exhibit rearranged during transfection (RET) kinase inhibition. In particular, provided herein are novel crystalline forms of 4-(6-(4-((6-methoxypyridin-3-yl)methyl)piperazin-1-yl)pyridin-3-yl)-6-(1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyridine-3-carbonitrile (Formula I), 6-(2-hydroxy-2-methylpropoxy)-4-(6-(6-((6-methoxypyridin-3-yl)methyl)-3,6-diazabicyclo[3.1.1]heptan-3-yl)pyridin-3-yl)pyrazolo[1,5-a]pyridine-3-carbonitrile (Formula II), 6-(2-hydroxy-2-methylpropoxy)-4-(6-(6-(6-methoxynicotinoyl)-3,6-diazabicyclo[3.1.
Type:
Application
Filed:
October 10, 2018
Publication date:
August 29, 2019
Inventors:
Andrew T. Metcalf, David Fry, Elizabeth A. McFaddin, Gabrielle R. Kolakowski, Julia Haas, Tony P. Tang, Yutong Jiang
Abstract: A method for preparing an intermediate for avibactam, and specifically relates to a method for preparing ({[(2S,5R)-2-carbamoyl-7-oxo-1,6-diazabicyclo[3.2.1]oct-6-yl]oxy}sulfonyl)tetrabutylammonium salt (II). With 5R-[(benzyloxy) amino] piperidine-2S-carboxylate oxalate (III) as the raw material is reacted with the amide of Formula IV via amidation to prepare the compound of Formula V; the resulting compound of Formula V is reacted with the carbonylation reagent via urea cyclization to obtain the compound of Formula VI; the benzyl or the substituted benzyl in the compound of Formula VI is removed by catalytic hydrogeneration, then the resulting compound is sulfatated by sulfur trioxide complex and is salinized into tetrabutylammonium to obtain the final product (II).
Type:
Application
Filed:
March 6, 2018
Publication date:
August 29, 2019
Inventors:
Yuxin QI, Xinfa LI, Baolin WANG, Hu QU, Xin XU, Lizhu JU
Abstract: A compound of Formula III as the raw material is hydrolyzed in an alkaline condition, then acidized to prepare a compound of Formula IV, and the resulting compound of formula IV and a solid phosgene or diphosgene are concurrently subjected to the urea cyclization and the chloroformylation reaction in the presence of an organic base and a catalyst to obtain a compound of formula V, and then the compound of formula V is amidated to obtain the final product (II). In the present invention, a “one-pot” method is adopted for urea cyclization, chloroformylation, and amidation reaction, and the intermediate products do not need post-treatments such as separation and purification.
Abstract: The present invention discloses processes comprising a) reacting ethyl isonipecotate with 1-bromo-2-chloroethane in the presence of an organic base in a solvent to form ethyl 1-(2-chloroethyl)piperidine-4-carboxylate (II) or a salt thereof. Process step a) may be included in a process for preparing umeclidinium bromide that comprises further process steps: b) reacting ethyl 1-(2-chloroethyl)piperidine-4-carboxylate (II) or a salt thereof with lithium diisopropylamide in a solvent to form ethyl 1-azabicyclo[2.2.2]octane-4-carboxylate (III); c) reacting ethyl 1-azabicyclo[2.2.2]octane-4-carboxylate (III) with phenyl lithium in a solvent to form 1-azabicyclo[2.2.2]oct-4-yl(diphenyl)methanol (IV); and d) reacting 1-azabicyclo[2.2.2]oct-4-yl(diphenyl)methanol (IV) with ((2-bromoethoxy)methyl) benzene in a solvent to form 4-[hydroxyl(diphenyl)methyl]-1-[2-(phenylmethyl)oxy]ethyl]-1-azoniabicyclo[2.2.2]octane bromide (I), umeclidinium bromide. A process comprising d) reacting 1-azabicyclo[2.2.
Type:
Application
Filed:
November 10, 2017
Publication date:
August 29, 2019
Inventors:
Nuno Torres LOURENÇO, Luis SOBRAL, Rafael ANTUNES, Maria SANTOS, Margarida ESPADINHA
Abstract: The present disclosure is directed to intermediates and salts thereof useful for the preparation of spirocyclic compounds which are inhibitors of tryptophan hydroxylase (TPH), particularly isoform 1 (TPH 1). Processes of preparing the intermediates, salts, and TPH inhibitors are also provided.
Type:
Application
Filed:
May 9, 2019
Publication date:
August 29, 2019
Applicant:
ALTAVANT SCIENCES GmbH
Inventors:
STÉPHANE DE LOMBAERT, DANIEL R. GOLDBERG
Abstract: The present invention is directed to compounds of Formula I: or a pharmaceutically acceptable salt thereof, wherein the substituents A, R1, R2, R3a, R3b, R4a, R4b and n are as defined herein. The inventions also directed to pharmaceutical compositions comprising the compounds, methods of treatment using the compounds and methods of preparing the compounds.
Type:
Application
Filed:
June 9, 2016
Publication date:
August 29, 2019
Applicant:
Pfizer Inc.
Inventors:
Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Christopher John Helal, Simone Sciabola, Erik Alphie LaChapelle, Travis T. Wager, Ramalakshmi Yegna Chandrasekaran
Abstract: The present invention relates to novel compounds of the formula (I) that can be employed in the selective Tau detection of disorders and abnormalities associated with Tau aggregates such as Alzheimer's disease and other tauopathies using Positron Emission Tomography (PET) Imaging.
Type:
Application
Filed:
July 21, 2017
Publication date:
August 29, 2019
Inventors:
Heiko KROTH, Jerome MOLETTE, Hanno SCHIEFERSTEIN, Andre MULLER, Heribert SCHMITT-WILLICH, Mathias BERNDT, Felix ODEN
Abstract: Provided herein are heterocyclic derivative compounds and pharmaceutical compositions comprising said compounds that are useful for inhibiting plasma kallikrein. Furthermore, the subject compounds and compositions are useful for the treatment of diseases wherein the inhibition of plasma kallikrein inhibition has been implicated, such as angioedema and the like.
Abstract: The present invention relates to compounds of formula I that function as inhibitors of RET (rearranged during transfection) kinase enzyme activity: wherein HET, X1, X2, X3, X4, integer a and R3 are each as defined herein. The present invention also relates to processes for the preparation of these compounds, to pharmaceutical compositions comprising them, and to their use in the treatment of proliferative disorders, such as cancer, as well as other diseases or conditions in which RET kinase activity is implicated.
Type:
Application
Filed:
April 18, 2017
Publication date:
August 29, 2019
Inventors:
Allan Jordan, Rebecca Newton, Bohdan Waszkowycz, Jonathan Mark Sutton, George Hynd, Silvia Paoletta, Euan Alexander Fraser Fordyce
Abstract: The described invention provides small molecule anti-cancer compounds for treating tumors that respond to cholesterol biosynthesis inhibition. The compounds selectively inhibit the cholesterol biosynthetic pathway in tumor-derived cancer cells, but do not affect normally dividing cells.
Type:
Application
Filed:
September 24, 2018
Publication date:
August 29, 2019
Applicant:
The Board of Regents of the University of Texas System
Abstract: Indazole compounds for treating various diseases and pathologies are disclosed. More particularly, the present disclosure concerns the use of an indazole compound or analogs thereof, in the treatment of disorders characterized by the activation of Wnt pathway signaling (e.g., tendinopathy, dermatitis, psoriasis, morphea, ichthyosis, Raynaud's syndrome, Darier's disease, scleroderma, cancer, abnormal cellular proliferation, angiogenesis, Alzheimer's disease, lung disease, and osteoarthritis), the modulation of cellular events mediated by Wnt pathway signaling, as well as neurological conditions/disorders/diseases linked to overexpression of DYRK1A.
Type:
Application
Filed:
February 22, 2019
Publication date:
August 29, 2019
Inventors:
Sunil Kumar KC, Chi Ching Mak, Gopi Kumar Mittapalli, Brian Joseph Hofilena, Brian Walter Eastman, Jianguo Cao, Chandramouli Chiruta, Venkataiah Bollu
Abstract: The present invention discloses pyrazolo[3,4-d]pyrimidine derivatives of formula (I). Compounds provided in the present invention have significant inhibitory effects on tumor cells, can be used for the prevention and/or treatment of tumor-related diseases, especially lung cancer, and have wide application prospects.
Type:
Application
Filed:
August 16, 2016
Publication date:
August 29, 2019
Inventors:
Yang HE, Weimin LI, Li ZHANG, Bojiang CHEN, Zhixin QIU
Abstract: The present application provides bifunctional compounds of Formula (X): or an enantiomer, diastereomer, or stereoisomer thereof, or pharmaceutically acceptable salt, hydrate, solvate, or prodrug thereof, which act as protein degradation inducing moieties for protein kinases. The present application also relates to methods for the targeted degradation of one or more protein kinases through the use of the bifunctional compounds that link a ubiquitin ligase-binding moiety to a ligand that is capable of binding to one or more protein kinases which can be utilized in the treatment of disorders modulated by protein kinases.
Type:
Application
Filed:
November 22, 2017
Publication date:
August 29, 2019
Applicant:
Dana-Farber Cancer Institute, Inc.
Inventors:
James BRADNER, Dennis BUCKLEY, Mette Ishoey ROSENBAUM, Georg WINTER
Abstract: Provided herein are, inter alia, compositions that bind to a PDZ1 domain of MDA-9/Syntenin (syndecan binding protein: SDCBP), thereby inhibiting MDA-9/Syntenin activity, and methods of use of same. The compositions and methods provided herein are useful for treating cancer and preventing cancer metastasis, particularly in cancers that have increased MDA-9/Syntenin expression.
Type:
Application
Filed:
November 14, 2017
Publication date:
August 29, 2019
Inventors:
Paul B. FISHER, Maurizio PELLECCHIA, Swadesh K. DAS, Timothy P. KEGELMAN, Bainan WU, Surya K. DE, Jun WEI, Mitchell E. MENEZES, Luni EMDAD
Abstract: The present invention relates to pharmaceutically acceptable water soluble salts of aldose reductase inhibitors, 2-(8-oxo-7-((5-trifluromethyl)-1H-benzo[d]imidazol-2-yl)methyl)7,8-dihydropyrazin[2,3-d]pyridazin-5-yl)acetic acid and [4-oxo-(5-trifluoromethyl-benzothaiazol-2-ylmethyl)-3,4-dihydro-phthalazin-1-yl]-acetic acid (also known as zopolrestat), pharmaceutical compositions thereof and methods of treating diabetic complications in mammals comprising administering to mammals these salt and compositions.
Abstract: The present disclosure provides compounds represented by Formula I: I, and the pharmaceutically acceptable salts, hydrates, and solvates thereof, wherein R1, R2a, R2b, R3, R4, Ar, L, X, Y, and B are as defined as set forth in the specification. The present disclosure also provides compounds of Formula I for use to treat a condition or disorder responsive to degradation of BET bromodomains such as cancer.
Abstract: The present invention encompasses compounds of the formula (I) wherein the groups A and B are defined herein, which are suitable for the treatment of diseases related to Vanin, and processes for making these compounds, pharmaceutical preparations containing these compounds, and their methods of use.
Type:
Application
Filed:
May 13, 2019
Publication date:
August 29, 2019
Inventors:
Todd BOSANAC, Michael J. BURKE, Brian Nicholas COOK, Darren Todd DISALVO, Thomas Martin KIRRANE, JR., Yue SHEN
Abstract: Crystalline polymorphous forms of rifaximin (INN) antibiotic named rifaximin ? and rifaximin ?, and a poorly crystalline form named rifaximin ?, useful in the production of medicinal preparations containing rifaximin for oral and topical use and obtained by means of a crystallization carried out by hot-dissolving the raw rifaximin in ethyl alcohol and by causing the crystallization of the product by addition of water at a determinate temperature and for a determinate period of time, followed by a drying carried out under controlled conditions until reaching a settled water content in the end product, are the object of the invention.
Type:
Application
Filed:
May 10, 2019
Publication date:
August 29, 2019
Inventors:
Giuseppe Claudio VISCOMI, Manuela CAMPANA, Dario BRAGA, Donatella CONFORTINI, Vincenzo CANNATA, Paolo RIGHI, Goffredo ROSINI, Denis SEVERINI
Abstract: Crystalline polymorphous forms of rifaximin (INN), referred to as rifaximin ? and rifaximin ?, and a poorly crystalline form referred to as rifaximin ?, useful in the production of medicaments containing rifaximin for oral and topical use and obtained by means of a crystallization process carried out by hot-dissolving the raw rifaximin in ethyl alcohol and by causing the crystallization of the product by addition of water at a fixed temperature and for a fixed period of time, followed by a drying under controlled conditions until reaching a precise water content in the end product, are the object of the invention.
Type:
Application
Filed:
May 10, 2019
Publication date:
August 29, 2019
Inventors:
Giuseppe Claudio VISCOMI, Manuela CAMPANA, Dario BRAGA, Donatella CONFORTINI, Vincenzo CANNATA, Paolo RIGHI, Goffredo ROSINI, Denis SEVERINI
Abstract: Provided is a compound represented by the formula (I): wherein each symbol is as defined in the specification, or a salt thereof, which has an AMPA (?-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor potentiating action. The compound of the present invention is useful as a prophylactic or therapeutic drug for depression, schizophrenia, Alzheimer's disease or attention deficit hyperactivity disorder (ADHD) and the like.
Abstract: The present invention relates to novel novel monocyclic and bicyclic ring system substituted carbanucleoside analogues of Formula (I) wherein the variables have the meaning defined in the claims. The compounds according to the present invention are useful as PRMT5 inhibitors. The invention further relates to pharmaceutical compositions comprising said compounds as an active ingredient as well as the use of said compounds as a medicament.
Type:
Application
Filed:
October 2, 2017
Publication date:
August 29, 2019
Inventors:
Tongfei WU, Dirk BREHMER, Lijs BEKE, An BOECKX, Gaston Stanislas Marcella DIELS, Edward Charles LAWSON, Lieven MEERPOEL, Vineet PANDE, Marcus Cornelis Bernardus Catharina PARADÉ, Wim Bert Griet SCHEPENS, Weimei SUN, Johannes Wilhelmus John F. THURING, Marcel VIELLEVOYE
Abstract: The present application relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
Abstract: A substituted boric acid compound, a pharmaceutical composition including the same, and an application thereof. The substituted boric acid compound is a compound represented by formula (I), or a crystal form, a pharmaceutically acceptable salt, a prodrug, a stereoisomer, a hydrate, or a solvent compound thereof. The boric acid compound has proteasome inhibitory activity, good pharmacodynamic/pharmacokinetic performance, good applicability, and high safety, and can be used for preparing drugs for treating diseases related to proteasomes.
Abstract: The present specification relates to a cyclic compound containing nitrogen, and a color conversion film, a backlight unit, and a display apparatus, including the same.
Abstract: The present invention relates to a 1,1-diborylalkyl-1-metal compound including one metal group together with two identical boron groups at the sp3 carbon center, and its use. Specifically, the present invention relates to development of novel organic reactions, synthesis of functional molecules, and synthesis of new drugs by applying the novel 1,1-diboryl-1-metal substituted alkyl compounds to various molecular libraries which could not be synthesized by conventional methodologies.
Abstract: The invention relates to a process for preparing triaryl organoborates proceeding from organoboronic esters in the presence of an n-valent cation 1/n Kn+, comprising the anhydrous workup of the reaction mixture and the use of the triaryl organoborates obtained as co-initiator in photopolymer formulations, holographic media and holograms.
Type:
Application
Filed:
November 7, 2017
Publication date:
August 29, 2019
Inventors:
Thomas ROLLE, Horst BERNETH, Dennis HONEL, Friedrich-Karl BRUDER, Jurgen KINTRUP
Abstract: The present invention provides novel compounds useful as proteasome inhibitors. The invention also provides pharmaceutical compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various diseases.
Type:
Application
Filed:
May 8, 2019
Publication date:
August 29, 2019
Inventors:
Eric L. Elliott, Abu J. Ferdous, Michael J. Kaufman, Sonja A. Komar-Lay, Debra L. Mazaik, Quentin J. McCubbin, Phuong M. Nguyen, Vaithianathan Palaniappan, Raymond D. Skwierczynski, Nobel T. Truong, Csanad M. Varga, Peter N. Zawaneh
Abstract: The present invention relates to a method for preparing various silane derivatives by subjecting various furan derivatives to hydrosilylation in the presence of a borane catalyst. The method for preparing silane derivatives according to the present invention is a very efficient method for converting, into high value-added silane derivatives, various furan derivatives derived from biomass.
Abstract: The present application concerns silafluorene derivatives according to a specific formula. The silafluorene derivatives can be employed in electronic devices. Furthermore, the present application concerns methods for preparation of the silafluorene derivatives, and electronic devices comprising the silafluorene derivatives.
Type:
Application
Filed:
November 6, 2017
Publication date:
August 29, 2019
Inventors:
Teresa MUJICA-FERNAUD, Rémi ANÉMIAN, Hyeon-Hui KANG, Il JUNG, Jun-Ho KIM
Abstract: To develop a protecting group that facilitates separation and purification, after reaction, of a compound including a protected functional group, without solidifying or insolubilizing the compound.
Abstract: Provided is a substituted piperidine compound having an orexin type 2 receptor agonist activity. A compound represented by the formula (I): wherein each symbol is as described in the DESCRIPTION, or a salt thereof has an orexin type 2 receptor agonist activity, and is useful as a prophylactic or therapeutic agent for narcolepsy.
Abstract: The present invention relates to a novel ligand compound, a transition metal compound and a catalyst composition comprising the same. The novel ligand compound and the transition metal compound of the present invention may be useful as a catalyst of polymerization reaction for preparing an olefin-based polymer having a low density.
Abstract: The process for producing a silyl phosphine compound of the present invention comprises a first step of mixing a solvent having a relative dielectric constant of not more than 4, a basic compound, a silylating agent and phosphine to obtain a solution containing a silyl phosphine compound, a second step of removing the solvent from the solution containing a silyl phosphine compound to obtain a concentrated solution of a silyl phosphine compound, and a third step of distilling the concentrated solution of a silyl phosphine compound to obtain the silyl phosphine compound. The silyl phosphine compound of the present invention is a silyl phosphine compound represented by the following general formula (1), wherein a content of a compound represented by the following general formula (2) is not more than 0.5 mol %. (For explanatory notes of the formulas, see the specification.
Abstract: Embodiments relate to a polymerizable composition comprising a phosphorus-based mold releasing agent for an optical use whose preparation process is improved, and a process for preparing the phosphorus-based mold releasing agent. The phosphorus-based mold releasing agents can be prepared more easily and conveniently by using phosphorous pentoxide, which can easily react with a monoalcohol and/or water at room temperature in the absence of a catalyst or a solvent. In addition, byproducts are not generated during the reaction. Thus, when a lens is produced by using the mold release agent obtained therefrom, it is possible to prevent a defective appearance of the lens that may be caused by byproducts, thereby further enhancing the appearance properties thereof. Further, since separate steps for removing byproducts, specifically, such steps as washing and filtration, are not required, wastewater is not generated.
Abstract: Provided is a method for producing an alkenyl phosphorus compound which can produce an alkenyl phosphorus compound efficiently even with a smaller amount of a catalyst used than that used conventionally, and further which can maintain catalytic activity to produce an alkenyl phosphorus compound in high yield even at a larger reaction scale, and which can also be applied to quantity synthesis at an industrial scale using a conventional batch reactor or continuous reactor. A method for producing an alkenyl phosphorus compound, comprising: a step of reacting a compound represented by the following formula (1): [In formula (1), R1 represents OR3 or R3, R2 represents OR4 or R4, and R3 and R4 represent, for example, each independently a substituted or unsubstituted alkyl group.] with a compound represented by the following formula (2): R5—C?CH??(2) [In formula (2), R5 represents, for example, a hydrogen atom, or a substituted or unsubstituted alkyl group.