Month: January 2023

Selective covalent targeting of SARS-CoV-2 main protease by enantiopure chlorofluoroacetamide was written by Yamane, Daiki;Onitsuka, Satsuki;Re, Suyong;Isogai, Hikaru;Hamada, Rui;Hiramoto, Tadanari;Kawanishi, Eiji;Mizuguchi, Kenji;Shindo, Naoya;Ojida, Akio. And the article was included in Chemical Science in 2022.Formula: C9H8N2 This article mentions the following:

An irreversible SARS-CoV-2 M^pro inhibitor possesseschlorofluoroacetamide (CFA) as a warhead for the covalent modification of M^pro. Ugi multicomponent reaction using chlorofluoroacetic acid enabled the rapid synthesis of dipeptidic CFA derivatives RC(O)N(C₆H₅R¹)CH(R²)C(O)NHR³ (R = Ac, ethenyl, difluoroacetyl, furan-2-yl; R¹ = i-Pr, t-Bu, 1-methylcyclohexyl, etc.; R² = pyridin-3-yl, pyridazin-4-yl, pyridazin-3-yl, etc.; R³ = t-Bu, isoquinolin-7-yl, 2-(3-fluorophenyl)ethyl, etc.) that identified (SR)/(RR)/(RS)(SS)-2-chloro-2-fluoro-N-(2-[(3-fluorophenethyl)amino]-2-oxo-1-(pyrimidin-5-yl)ethyl)-N-[4-(pentafluoro-lmbda6-sulfaneyl)phenyl]acetamide as a potent inhibitor of SARS-CoV-2 M^pro. Among the four stereoisomers, (R)-2-chloro-2-fluoro-N-((R)-2-[(3-fluorophenethyl)amino]-2-oxo-1-(pyrimidin-5-yl)ethyl)-N-[4-(pentafluoro-lamda6-sulfaneyl)phenyl]acetamide exhibited a markedly higher inhibitory activity against M^pro than the other isomers. Reaction kinetics and computational docking studies suggest that the R configuration of the CFA warhead is crucial for the rapid covalent inhibition of M^pro. These findings highlight the prominent influence of the CFA chirality on the covalent modification of proteinous cysteines and provide the basis for improving the potency and selectivity of CFA-based covalent inhibitors. In the experiment, the researchers used many compounds, for example, Isoquinolin-7-amine (cas: 23707-37-1Formula: C9H8N2).

Isoquinolin-7-amine (cas: 23707-37-1) belongs to isoquinoline derivatives. The isoquinoline structure occurs in a considerable number of alkaloids in widely separated plant families. They are also used to make oil-soluble dyes, food colorants, pharmaceuticals, pH indicators and other organic compounds. Formula: C9H8N2

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Synthesis, optical resolution, absolute configuration, and preliminary pharmacology of (+)- and (-)-cis-2,3,3a,4,5,9b-hexahydro-1-methyl-1H-pyrrolo[3,2-h]isoquinoline, a structural analog of nicotine was written by Glassco, William;Suchocki, John;George, Clifford;Martin, Billy R.;May, Everette L.. And the article was included in Journal of Medicinal Chemistry in 1993.Related Products of 135311-97-6 This article mentions the following:

Title compound, I, was prepared from isoquinoline, and separated into its antipodes with D– and L-di-p-toluoyltartaric acids. These bridged nicotine analogs either are binding to an as-yet-unidentified nicotinic receptor or they represent a novel class of nonnicotinic analgesics. However, (+)-I failed to compete for [³H]-nicotine binding, and its pharmacol. effects were not blocked by mecamylamine. Isomer (+)-I has the 3aR,9bS configuration, the latter corresponding to (S)-(-)-nicotine as determined by x-ray crystallog. Compound (-)-I was one fourth as potent. The most potent compound, (+)-I, had an ED₅₀ of 7.13 μmol/kg for inhibition of spontaneous activity and 7.45 μmol/kg for antinociception compared to 4.44 and 4.81 μmol/kg, resp., for (S)-(-)-nicotine. These antipodes and the racemic precursor were evaluated in in vivo systems for their effects. These bridged nicotine analogs either are binding to an as-yet-unidentified nicotinic receptor or they represent a novel class of nonnicotinic analgesics. In the experiment, the researchers used many compounds, for example, 6,7-Dihydroisoquinolin-8(5H)-one hydrochloride (cas: 135311-97-6Related Products of 135311-97-6).

6,7-Dihydroisoquinolin-8(5H)-one hydrochloride (cas: 135311-97-6) belongs to isoquinoline derivatives. Isoquinoline is a structural isomer of quinoline, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. Most traditional methods of generating isoquinoline do so via oxidative aromatization of dihydro- or tetrahydro-isoquinolines, usually offering some environmental or economic advantage.Related Products of 135311-97-6

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Design, synthesis, and structure-activity relationship studies of conformationally restricted mutilin 14-carbamates was written by Fu, Liqiang;Liu, Xin;Ling, Chenyu;Cheng, Jianjun;Guo, Xingsheng;He, Huili;Ding, Shi;Yang, Yushe. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2012.Electric Literature of C9H8N2O3 This article mentions the following:

We report herein the design, synthesis, and structure-activity relationship studies of conformationally restricted mutilin 14-carbamates based on the structure of SB-222734. For example, reacting benzoates I (R¹ = H, MeO, NO₂, R² = H, F, NO₂, R⁹ = H) with N-bromosuccinimide gave the brominated compounds I (R⁹ = Br), which cyclized to give isoindolinones II. II were then coupled with 4-epi-mutilin 14-chloroformate III and treated with a saturated solution of ZnCl₂ in concentrated HCl resulting in a reverse 1,5-hydride shift to afford desired products IV. The antibacterial activities of these newly synthesized compounds were also evaluated and compared with linezolid and retapamulin. Results showed that most of the target compounds exhibit good potency in inhibiting the growth of Gram-pos. bacteria including Methicillin-susceptible Staphylococcus aureus MSSA (MIC: 0.0625-2 μg/mL), Methicillin-resistant S. aureus MRSA (MIC: 0.0625-2 μg/mL), Methicillin-susceptible Staphylococcus epidermidis MSSE (MIC: 0.0625-2 μg/mL), Methicillin-resistant S. epidermidis MRSE (MIC: 0.0625-2 μg/mL), and Streptococcus pneumonia (MIC: 0.0625-4 μg/mL). In particular, three remarkable compounds of this series IV (R¹ = NH₂, R² = H; R¹ = H, R² = NH₂) and isoquinolinyl derivative V exhibited comparable in vitro antibacterial profiles to that of retapamulin. In the experiment, the researchers used many compounds, for example, 7-Nitro-3,4-dihydroisoquinolin-1(2H)-one (cas: 22245-96-1Electric Literature of C9H8N2O3).

7-Nitro-3,4-dihydroisoquinolin-1(2H)-one (cas: 22245-96-1) belongs to isoquinoline derivatives. Isoquinoline is a structural isomer of quinoline, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. Other industrial applications include their use as corrosion inhibitors, preservatives, and as solvents for resins and terpenes.Electric Literature of C9H8N2O3

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Hydrogen and carbon NMR data for aminoquinolines and aminoisoquinolines was written by Kook, Alan M.;Smith, Stanford L.;Brown, Ellis V.. And the article was included in Organic Magnetic Resonance in 1984.Related Products of 23707-37-1 This article mentions the following:

Assignment of the ¹H and ¹³C chem. shifts in the title spectra were made from homo- and heteronuclear coupled and decoupled spectra, selective homo- and heteronuclear decoupling experiments, spin simulations and iterations by LAOCOON3 and, in some cases, changing the solvent to CDCl₃. In the experiment, the researchers used many compounds, for example, Isoquinolin-7-amine (cas: 23707-37-1Related Products of 23707-37-1).

Isoquinolin-7-amine (cas: 23707-37-1) belongs to isoquinoline derivatives. Although isoquinoline derivatives can be synthesized by several methods, relatively few direct methods deliver the unsubstituted isoquinoline. Other industrial applications include their use as corrosion inhibitors, preservatives, and as solvents for resins and terpenes.Related Products of 23707-37-1

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Discovery of Phenylglycine Lactams as Potent Neutral Factor VIIa Inhibitors was written by Wurtz, Nicholas R.;Parkhurst, Brandon L.;Jiang, Wen;DeLucca, Indawati;Zhang, Xiaojun;Ladziata, Vladimir;Cheney, Daniel L.;Bozarth, Jeffrey R.;Rendina, Alan R.;Wei, Anzhi;Luettgen, Joseph M.;Wu, Yiming;Wong, Pancras C.;Seiffert, Dietmar A.;Wexler, Ruth R.;Priestley, E. Scott. And the article was included in ACS Medicinal Chemistry Letters in 2016.Application In Synthesis of 7-Nitro-3,4-dihydroisoquinolin-1(2H)-one This article mentions the following:

Inhibitors of Factor VIIa (FVIIa), a serine protease in the clotting cascade, have shown strong antithrombotic efficacy in preclin. thrombosis models with minimal bleeding liabilities. Discovery of potent, orally active FVIIa inhibitors has been largely unsuccessful because known chemotypes have required a highly basic group in the S1 binding pocket for high affinity. A recently reported fragment screening effort resulted in the discovery of a neutral heterocycle, 7-chloro-3,4-dihydroisoquinolin-1(2H)-one, that binds in the S1 pocket of FVIIa and can be incorporated into a phenylglycine FVIIa inhibitor. Optimization of this P1 binding group led to the first series of neutral, permeable FVIIa inhibitors with low nanomolar potency. In the experiment, the researchers used many compounds, for example, 7-Nitro-3,4-dihydroisoquinolin-1(2H)-one (cas: 22245-96-1Application In Synthesis of 7-Nitro-3,4-dihydroisoquinolin-1(2H)-one).

7-Nitro-3,4-dihydroisoquinolin-1(2H)-one (cas: 22245-96-1) belongs to isoquinoline derivatives. Quinoline and its derivatives are widely used as fungicides, biological agents, antibiotics, alkaloids, dyes, rubber chemicals and flavoring agents. Isoquinoline-type alkaloids show biological activities similar to those of morphinane-, protoberberine-, and benzophenanthridine-type alkaloids.Application In Synthesis of 7-Nitro-3,4-dihydroisoquinolin-1(2H)-one

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Photoredox-Catalyzed Redox-Neutral Minisci C-H Formylation of N-Heteroarenes was written by Dong, Jianyang;Wang, Xiaochen;Song, Hongjian;Liu, Yuxiu;Wang, Qingmin. And the article was included in Advanced Synthesis & Catalysis in 2020.Reference of 36034-54-5 This article mentions the following:

A protocol for redox-neutral Minisci C-H formylation of N-heteroarenes using 1,3-dioxoisoindolin-2-yl 2,2-diethoxyacetate as a formyl equivalent at room temp was reported. This scalable benchtop protocol offered a distinct advantage over traditional reductive carbonylation and Minisci C-H formylation methods in not requiring the use of carbon monoxide, pressurized gas, a stoichiometric reductant, or a stoichiometric oxidant. In the experiment, the researchers used many compounds, for example, 4-Methoxyisoquinoline (cas: 36034-54-5Reference of 36034-54-5).

4-Methoxyisoquinoline (cas: 36034-54-5) belongs to isoquinoline derivatives. Quinoline is a mancude organic heterobicyclic parent, an azaarene, an ortho-fused heteroarene and a member of isoquinolines. They are also used to make oil-soluble dyes, food colorants, pharmaceuticals, pH indicators and other organic compounds. Reference of 36034-54-5

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Structure-activity relationships of 7-substituted dimethyltyrosine-tetrahydroisoquinoline opioid peptidomimetics was written by Montgomery, Deanna;Anand, Jessica P.;Baber, Mason A.;Twarozynski, Jack J.;Hartman, Joshua G.;Delong, Lennon J.;Traynor, John R.;Mosberg, Henry I.. And the article was included in Molecules in 2019.Electric Literature of C20H30BNO4 This article mentions the following:

The opioid receptors modulate a variety of biol. functions, including pain, mood, and reward. As a result, opioid ligands are being explored as potential therapeutics for a variety of indications. Multifunctional opioid ligands, which act simultaneously at more than one type of opioid receptor, show promise for use in the treatment of addiction, pain, and other conditions. Previously, we reported the creation of bifunctional kappa opioid receptor (KOR) agonist/mu opioid receptor (MOR) partial agonist ligands from the classically delta opioid receptor (DOR) antagonist selective dimethyltyrosine-tetrahydroisoquinoline (Dmt-Tiq) scaffold through the addition of a 7-benzyl pendant on the tetrahydroisoquinoline ring. This study further explores the structure-activity relationships surrounding 7-position pendants on the Dmt-Tiq scaffold. Some analogs maintain a KOR agonist/MOR partial agonist profile, which is being explored in the development of a treatment for cocaine addiction. Others display a MOR agonist/DOR antagonist profile, which has potential to be used in the creation of a less addictive pain medication. Ultimately, we report the synthesis and in vitro evaluation of novel opioid ligands with a variety of multifunctional profiles. In the experiment, the researchers used many compounds, for example, tert-Butyl 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinoline-2(1H)-carboxylate (cas: 937048-76-5Electric Literature of C20H30BNO4).

tert-Butyl 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinoline-2(1H)-carboxylate (cas: 937048-76-5) belongs to isoquinoline derivatives. Quinoline and its derivatives are widely used as fungicides, biological agents, antibiotics, alkaloids, dyes, rubber chemicals and flavoring agents. It protonates to form salts upon treatment with strong acids, such as HCl. It forms adducts with Lewis acids, such as BF3.Electric Literature of C20H30BNO4

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Novel dimethyltyrosine-tetrahydroisoquinoline peptidomimetics with aromatic tetrahydroisoquinoline substitutions show in vitro Kappa and Mu opioid receptor agonism was written by Montgomery, Deanna;Anand, Jessica P.;Griggs, Nicholas W.;Fernandez, Thomas J.;Hartman, Joshua G.;Sanchez-Santiago, Ashley A.;Pogozheva, Irina D.;Traynor, John R.;Mosberg, Henry I.. And the article was included in ACS Chemical Neuroscience in 2019.Recommanded Product: tert-Butyl 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinoline-2(1H)-carboxylate This article mentions the following:

The dimethyltyrosine-tetrahydroisoquinoline (Dmt-Tiq) scaffold was originally developed in the production of selective delta opioid receptor (DOR) antagonists. Installation of a 7-benzyl pendant on the tetrahydroisoquinoline core of this classic opioid scaffold introduced kappa opioid receptor (KOR) agonism. Further modification of this pendant resulted in retention of KOR agonism and the addition of mu opioid receptor (MOR) partial agonism, a bifunctional profile with potential to be used in the treatment of cocaine addiction. In the experiment, the researchers used many compounds, for example, tert-Butyl 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinoline-2(1H)-carboxylate (cas: 937048-76-5Recommanded Product: tert-Butyl 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinoline-2(1H)-carboxylate).

tert-Butyl 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinoline-2(1H)-carboxylate (cas: 937048-76-5) belongs to isoquinoline derivatives. Although isoquinoline derivatives can be synthesized by several methods, relatively few direct methods deliver the unsubstituted isoquinoline. It protonates to form salts upon treatment with strong acids, such as HCl. It forms adducts with Lewis acids, such as BF3.Recommanded Product: tert-Butyl 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinoline-2(1H)-carboxylate

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

N-Methylation of amines with methanol catalyzed by a Cp*Ir complex bearing a functional 2,2′-bibenzimidazole ligand was written by Liang, Ran;Li, Shun;Wang, Rongzhou;Lu, Lei;Li, Feng. And the article was included in Organic Letters in 2017.Electric Literature of C9H8N2 This article mentions the following:

A new type of Cp*Ir complex bearing a functional 2,2′-bibenzimidazole ligand, [Cp^*IrCl[2,2′-(C₇H₅N₂)₂]] was designed, synthesized, and found to be a highly effective and general catalyst for the N-methylation of a variety of amines with methanol in the presence of a weak base (0.3 equiv of Cs₂CO₃), giving N-methylamines with high chemoselectivity. In the experiment, the researchers used many compounds, for example, Isoquinolin-7-amine (cas: 23707-37-1Electric Literature of C9H8N2).

Isoquinolin-7-amine (cas: 23707-37-1) belongs to isoquinoline derivatives. Although isoquinoline derivatives can be synthesized by several methods, relatively few direct methods deliver the unsubstituted isoquinoline. Other industrial applications include their use as corrosion inhibitors, preservatives, and as solvents for resins and terpenes.Electric Literature of C9H8N2

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Photochemistry of methoxy-substituted quinoline and isoquinoline N-oxides was written by Albini, Angelo;Fasani, Elisa;Dacrema, Lucia Maggi. And the article was included in Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) in 1980.Reference of 36034-54-5 This article mentions the following:

Irradiation of methoxyquinoline and -isoquinoline N-oxides gave a variety of photoisomers as well as deoxygenation and secondary reaction products, the nature of the products being dependent on the solvent and the position of the -OMe group. E.g., the irradiation of I (R = H, R¹ = OMe) (medium-pressure Hg vapor lamp, 15°) gave 83% II in H₂O whereas in C₆H₆ 50% III (R = H, R¹ = OMe) was obtained; however I (R = OMe, R¹ = H) gave, under the same conditions, o-HOC₆H₄CH:CHNHCO₂Me and IV (22 and 22%, resp.) in water, and III (R = OMe, R¹ = H) (40%) in C₆H₁₂. In the experiment, the researchers used many compounds, for example, 4-Methoxyisoquinoline (cas: 36034-54-5Reference of 36034-54-5).

4-Methoxyisoquinoline (cas: 36034-54-5) belongs to isoquinoline derivatives. Quinoline and isoquinoline skeletons are among the most attractive frameworks with a wide range of biological and pharmacological activities. The discovery of chloroquine, the most well-known drug containing this stent, has helped bring about decades of malaria control and treatment.Reference of 36034-54-5

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem