90534-49-9Relevant academic research and scientific papers
IDO/TDO Inhibitor
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Paragraph 0334-0336; 0396; 0397, (2020/08/19)
A compound of formula (I) given below or a pharmaceutically acceptable salt of the compound is useful as an IDO/TDO inhibitor. Thus, the compound of formula (I) or the pharmaceutically acceptable salt of the compound can be used as, for example, a therapeutic agent for a disease or a disorder selected from tumor, infectious disease, neurodegenerative disorder, cataract, organ transplant rejection, autoimmune disease, postoperative cognitive impairment, and disease related to women's reproductive health [in the following formula (I), ring A represents an aromatic ring, an aliphatic ring, a heterocyclic ring, or a condensed ring of two or more rings selected from an aromatic ring, an aliphatic ring and a heterocyclic ring; X, R1 and R2 represent a substituent on a ring atom constituting ring A; m represents an integer of 0 to 6; X represents, for example, a halogen atom; and R1 and R2 are the same or different and are selected from, for example, the group consisting of groups of formula (a) or formula (b); and in the following formula (a) and formula (b), Y is selected from the group consisting of O, S, and Se, Z is selected from the group consisting of O, S, and Se, n represents an integer of 1 to 8, r represents an integer of 1 to 8, s represents an integer of 1 to 8, R4 represents, for example, —C(═NH)—HN2, and R6 represents, for example, a substituted or unsubstituted aryl group].
Platinum-on-Carbon-Catalyzed Aqueous Oxidative Lactonization of Diols by Using Molecular Oxygen
Ban, Kazuho,Sajiki, Hironao,Sawama, Yoshinari,Takakura, Ryoya
supporting information, p. 1919 - 1923 (2019/09/30)
A lactonization of various diols catalyzed by platinum on carbon (Pt/C) in water under an atmosphere of molecular oxygen was developed. Derivatives of 1,4- 1,5- and 1,6-diols were transformed into the corresponding five-, six-, and seven-membered lactones by the present oxidative lactonization method.
Synthesis of 1,2-phenylenedimethanols by base-promoted reduction of isobenzofuran-1(3H)-ones with silane
Liu, Bin,Zhou, Xigeng
supporting information, p. 725 - 728 (2018/12/11)
An efficient method for preparation of substituted 1,2-phenylenedimethanols and aliphatic 1,4-diols that are valuable intermediates in organic synthesis, has been developed by the base-promoted reduction of isobenzofuran-1(3H)-ones and γ-lactones with silane under mild conditions. Compared with traditional procedures using stoichiometric amounts of metal hydrides and alkyl reductants, the present method avoids the use of sensitive reagents and is operationally simple and a broad variety of functional groups are tolerated.
Assessment of the regioselectivity in the condensation reaction of unsymmetrical o-phthaldialdehydes with alanine
D'Hollander, Agathe C.A.,Westwood, Nicholas J.
supporting information, p. 224 - 239 (2017/12/08)
One approach for the synthesis of isoindolinones, a privileged bioactive heterocyclic core structure, involves a condensation reaction of o-phthaldialdehydes with a suitable nitrogen-containing nucleophile. This fascinating reaction is revisited here in the context of the use of o-phthaldialdehydes that contain additional substituents in the aromatic ring leading to a detailed analysis of the regioselectivity of the reaction. Eleven monosubstituted o-phthaldialdehydes were synthesised and reacted with alanine. The regioselectivity observed across the eleven substrates led to the design of a disubstituted substrate that reacted with very high control. A gram-scale reaction followed by esterification gave one major regioisomer in high yield. In addition, the regioselectivity observed on reaction of two novel monodeuterated substrates led to an increased mechanistic understanding.
Iron(II) pincer-catalyzed synthesis of lactones and lactams through a versatile dehydrogenative domino sequence
Pea-Lpez, Miguel,Neumann, Helfried,Beller, Matthias
, p. 865 - 871 (2015/03/14)
The synthesis of lactones and lactams by using iron(II) pincer-catalyzed dehydrogenative methodology was developed. Starting from 1,n-diols or 1,n-amino alcohols, this domino transformation takes place through initial dehydrogenation of the substrates, subsequent intramolecular cyclization, and final oxidation to afford the desired products in good yields. The ability to access heterocycles of different sizes makes this protocol especially versatile, in which two consecutive oxidation reactions are performed without requiring an external oxidant. In this paper, we report the application of the Fe-MACHO-BH complex [carbonylhydrido(tetrahydroborato)[bis(2-diisopropylphosphinoethyl)amino]iron(II)] in this atom-efficient and environmentally benign process, for which molecular hydrogen is formed as the only stoichiometric side product. Just a little pinch: The iron(II) pincer-catalyzed synthesis of lactones and lactams from easily available 1,n-diols and 1,n-amino alcohols is explored. The use of a nontoxic metal as well as the generation of molecular hydrogen as the only stoichiometric byproduct makes this method a highly atom-efficient and environmentally benign process.
Methyl and Dimethyl o-Xylenyl-Substituted Fullerene Acceptors for Polymer Solar Cells
Kim, Hee Un,Park, Jong Baek,Grimsdale, Andrew C.,Hwang, Do-Hoon
, p. 1017 - 1027 (2015/09/28)
A series of fullerene derivatives based on methyl- and dimethyl-substituted o-xylenyl groups were synthesized via Diels-Alder reaction from fullerene (C60) and dienes derived from α,α′-dibromo-o-xylene derivatives. The synthesized 1-methyl-4,5-
Cobalt-Catalyzed Formal [4+2] Cycloaddition of α,α′-Dichloro-ortho-Xylenes with Alkynes
Komeyama, Kimihiro,Okamoto, Yuji,Takaki, Ken
supporting information, p. 11325 - 11328 (2016/02/19)
A formal [4+2] cycloaddition of α,α′-dichloro-ortho-xylenes with various alkynes has been developed using a low-valent cobalt catalyst. The transformation has a wide substrate scope and high functional-group tolerance and led to 1,4-dihydronaphthalenes. T
THERAPEUTIC AGENT FOR CEREBRAL INFARCTION
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, (2012/08/08)
The invention provides a therapeutic drug for ischemic stroke. The therapeutic drug has the formula (I) wherein each symbol is as defined herein, or a pharmacologically acceptable salt thereof, or a solvate thereof, as an active ingredient.
Fullerene Derivatives and Organic Electronic Device Comprising the Same
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Page/Page column 8, (2012/01/14)
The present invention relates to fullerene derivatives and an organic electronic device using the same, and more specifically, to a novel fullerene derivative incorporating an aromatic fused ring compound and to an organic electronic device with excellent
FULLERENE DERIVATIVES AND ORGANIC ELECTRONIC DEVICE COMPRISING THE SAME
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Page/Page column 15, (2011/12/14)
The present invention relates to fullerene derivatives and an organic electronic device using the same, and more specifically, to a novel fullerene derivative incorporating an aromatic fused ring compound and to an organic electronic device with excellent
