127168-82-5Relevant academic research and scientific papers
Regiochemistry in the reductive opening of phthalan derivatives
Foubelo, Francisco,García, Daniel,Moreno, Benjamín,Yus, Miguel
, p. 3379 - 3383 (2007)
The lithiation of phthalan derivatives 4, 9 and 12 with an excess of lithium in the presence of a catalytic amount of 4,4′-di-tert-butylbiphenyl (DTBB) in THF at -78 °C gives dianionic intermediates 5, 10 and 13, respectively, which by reaction with different electrophiles [H2O, t-BuCHO, Me2CO, (EtO)2CO] at the same temperature, followed by hydrolysis, leads to regioselective functionalised naphthalenes 7, and biphenyls 11 and 14. The reductive opening takes place with high or total regioselectivity and can be explained considering the electron density in the dianion or in the radical anion, which are formed previous to the carbon-oxygen bond excision. The lithiation of the dihydrofurophthalan derivative 18 with the same reaction mixture but at higher temperature (0 °C) leads to intermediates 19 and 20, resulting from a single and a double reductive cleavage, respectively, which after addition of H2O and benzaldehyde as electrophiles gives a mixture of compounds 21 and 22.
X-Ray structure determinations of bromo and/or bromomethylsubstituted benzenes: C-H···Br, C-Br···Br, and C-Br···p interactions
Jones, Peter G.,Kus, Piotr,Dix, Ina
, p. 1273 - 1281 (2012)
The structures of seven benzene derivatives [1,2,3-tri(bromomethyl)benzene, (1); 3,5-di(bromomethyl)bromobenzene, (2); 2,5-di(bromomethyl)bromobenzene, (3); 4-(bromomethyl)-2,5-dibromotoluene, (4); 4-(bromomethyl)bromobenzene, (5); 2,3-di(bromomethyl)bromobenzene, (6) and (bromomethyl)-p-dibromobenzene, (7)] with bromo and bromomethyl (and in one case methyl) substituents are presented and analysed in terms of Br···Br interactions up to 4.0 A , supported by hydrogen bonds H···Br. Some interactions of the type Br···π and π·· · π are encountered and play a subordinate role in the packing. Despite the close chemical similarity of the compounds, some of which are isomers with permuted substituent positions, the packing motifs are highly variable. Compounds 2-5 are based on layer structures with Brn (n=3, 4) and/or mixed Br/C rings. Compounds 1, 6 and 7 display three-dimensional packings of differing complexity, but with interpretable substructures; 1 can be analysed in terms of ribbons of linked Br3 and Br4 rings; 6 displays chains of linked Br3 triangles; 7 consists of ribbons of linked Br4 quadrilaterals.
Structure Elucidation Using Gas Chromatography-Infrared Spectroscopy/Mass Spectrometry Supported by Quantum Chemical IR Spectrum Simulations
Doetzer, Reinhard,Kulsing, Chadin,Marriott, Philip J.,Nolvachai, Yada,Salzmann, Susanne,Steiner, Sandra,Zavahir, J. Shezmin
, p. 15508 - 15516 (2021/11/23)
An improved strategy for compound identification incorporating gas chromatography hyphenated with Fourier transform infrared spectroscopy and mass spectroscopy (GC-FTIR/MS) is reported. (Over)reliance on MS may lead either to ambiguous identity or to incorrect identification of a compound. However, the MS result is useful to provide a cohort of possible compounds. The IR result for each tentative compound match was then simulated using molecular modeling, to provide functional group and isomer differentiation information, and then compared with the experimental FTIR result, offering identification based on both MS and IR. Several basis sets were evaluated for IR simulations; Def2-TZVPP was a suitable basis set and correlated well with experimental data. The approach was applied to industrial applications, confirming the isomers of 2,3-bis(thiosulfanyl)-but-2-enedinitrile, bromination products of 1-bromo-2,3-dimethylbenzene, and autoxidative degradation of phenyl-di-tert-butylphosphine.
IDO/TDO Inhibitor
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Paragraph 0334; 0337; 0338; 0406; 0407, (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].
THIENODIAZEPINE DERIVATIVES AND APPLICATION THEREOF
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Paragraph 0115-0117, (2020/08/09)
The present invention relates to a class of thienodiazepine derivatives and an application thereof in the preparation of a drug for the treatment of diseases associated with bromodomain and extra-terminal (BET) Bromodomain inhibitors. Specifically, the present invention relates to compounds represented by formulas (I) and (II), as well as pharmaceutically acceptable salts thereof.
METHODS USING HDAC11 INHIBITORS
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Paragraph 0803-0804, (2018/05/16)
The present invention provides methods and uses of inhibitors of histone deacetylase 11 (HDAC11) in the treatment of diseases and/or disorders, such as, for example, cell proliferative diseases.
THERAPEUTIC COMPOUNDS
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Paragraph 0135; 0136, (2018/07/06)
no abstract published
NOVEL N-ACYL-ARYLSULFONAMIDE DERIVATIVES AS AMINOACYL-TRNA SYNTHETASE INHIBITORS
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Page/Page column 30, (2016/09/22)
The present invention relates to novel N-acyl-diarysulfonamides acting as inhibitors of bacterial aminoacyl-tRNA synthetase. These can be used as medicines or as constituent of medicines for the treatment of bacterial infections.
ARYL LINKED IMIDAZOLE AND TRIAZOLE DERIVATIVES AND METHODS OF USE THEREOF FOR IMPROVING THE PHARMACOKINETICS OF A DRUG
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Page/Page column 53, (2015/06/03)
The present invention relates to aryl linked imidazole and triazole derivatives, compositions comprising said compounds, alone or in combination with other drugs, and methods of using the compounds for improving the pharmacokinetics of a drug. The compounds of the invention are useful in human and veterinary medicine for inhbiting CYP3A4 and for improving the pharmacokinetics of a therapeutic compound that is metabolized by CYP3A4.
ARYL LINKED IMIDAZOLE AND TRIAZOLE DERIVATIVES AND METHODS OF USE THEREOF FOR IMPROVING THE PHARMACOKINETICS OF A DRUG
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Page/Page column 52, (2015/06/03)
The present invention relates to aryl linked imidazole and triazole derivatives, compositions comprising said compounds, alone or in combination with other drugs, and methods of using the compounds for improving the pharmacokinetics of a drug. The compounds of the invention are useful in human and veterinary medicine for inhbiting CYP3A4 and for improving the pharmacokinetics of a therapeutic compound that is metabolized by CYP3A4.
