Tag: 100-200

Mitra, Anindita; Biswas, Ria; Bagchi, Angshuman; Ghosh, Rita published their research in International Journal of Biological Macromolecules on December 1 ,2019. The article was titled 《Insight into the binding of a synthetic nitro-flavone derivative with human poly (ADP-ribose) polymerase 1》.Category: isoquinoline The article contains the following contents:

Flavones are important bioactive compounds, many of which are effective in cancer therapy for their ability to target enzymes related to DNA repair and cell proliferation. In this report, the interaction of a synthetic nitroflavone, 2,4-nitrophenylchromen-4-one (4NCO) with human poly (ADP-ribose) polymerase 1 (hPARP1) was investigated to explore its inhibitory action. Its interaction with hPARP1 was compared with that of other inhibitors through mol. docking studies. Further insight into the 4NCO-hPARP1 interaction was obtained from competitive docking and mol. dynamic simulation studies. In silico mutagenesis studies and per-residue interaction energy calculations were carried out. Quant. Structure Activity Relationship anal. was also performed to calculate its predictive percent inhibitory activity. Our results indicated that 4NCO exhibited competitive mode of binding to hPARP1. It formed a stable interaction with the protein thereby hindering any further mol. interaction to render it inactive with a predictive inhibition of 96%. It also had good ADMET properties and showed best Autodock binding free energy values compared to other known inhibitors. 4NCO showed good hPARP1 inhibitory properties with higher bioavailability and lower probability of getting effluxed. Development of inhibitors against hPARP1 is important for cell proliferative disorders, where 4NCO can be predicted as a potential new drug. The experimental process involved the reaction of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5Category: isoquinoline)

5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline. Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. Category: isoquinoline

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Stiefl, Nikolaus; Baumann, Knut published an article in Journal of Chemical Information and Modeling. The title of the article was 《Structure-Based Validation of the 3D-QSAR Technique MaP》.Application In Synthesis of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one The author mentioned the following in the article:

For three target proteins with different binding pocket characteristics (size and shape, hydrophobicity, hydrogen-bonding) a structure-based validation of the translationally and rotationally invariant 3D-QSAR technique MaP is performed (MaP: Mapping Property distributions of mol. surfaces). The structure-based validation procedure comprises two steps: first, QSAR models are derived without using the information of the target protein. Second, the models are back-projected into the crystal structure of the binding pockets and interpreted. It is demonstrated that MaP is able to identify characteristics important for ligand binding in the cases studied here. Moreover, it is demonstrated that MaP is a versatile 3D-QSAR technique since good, predictive models could be obtained for all three data sets showing distinct characteristics. After reading the article, we found that the author used 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5Application In Synthesis of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one)

5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline. Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. Application In Synthesis of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Marcou, Gilles; Rognan, Didier published an article on February 28 ,2007. The article was titled 《Optimizing Fragment and Scaffold Docking by Use of Molecular Interaction Fingerprints》, and you may find the article in Journal of Chemical Information and Modeling.Category: isoquinoline The information in the text is summarized as follows:

Protein-ligand interaction fingerprints have been used to postprocess docking poses of three ligand data sets: a set of 40 low-mol.-weight compounds from the Protein Data Bank, a collection of 40 scaffolds from pharmaceutically relevant protein ligands, and a database of 19 scaffolds extracted from true cdk2 inhibitors seeded in 2230 scaffold decoys. Four popular docking tools (FlexX, Glide, Gold, and Surflex) were used to generate poses for ligands of the three data sets. In all cases, scoring by the similarity of interaction fingerprints to a given reference was statistically superior to conventional scoring functions in posing low-mol.-weight fragments, predicting protein-bound scaffold coordinates according to the known binding mode of related ligands, and screening a scaffold library to enrich a hit list in true cdk2-targeted scaffolds. The experimental process involved the reaction of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5Category: isoquinoline)

5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline. Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. Category: isoquinoline

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

《Synthesis of 3,4-dihydro-1(2H)-isoquinolinones》 was written by Showalter, H. D. Hollis; Sercel, Anthony D.; Stier, Michael A.; Turner, William R.. Safety of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one And the article was included in Journal of Heterocyclic Chemistry on August 31 ,2001. The article conveys some information:

Approaches toward the preparative-scale synthesis of target 3,4-dihydro-1(2H)-isoquinolinones [I; R = 7-Me, 5-Me, 5-O(CH2)3NHMe] are presented. I (R = 7-Me, 5-Me) were prepared via a Schmidt rearrangement on easily obtained indanone precursors, but in low overall yield. A better method to make this class of compounds is exemplified by the large-scale synthesis of I (R = 5-Me) via a Curtius rearrangement sequence. Thus, high-temperature thermal cyclization of an in situ formed styryl isocyanate in the presence of tributylamine gave the corresponding 1(2H)-isoquinolinone, which underwent catalytic hydrogenation to provide the desired I (R = 5-Me) in 65% overall yield. Similar reduction of a com. available 5-hydroxy-1(2H)-isoquinolinone precursor, followed by an O-alkylation/amination sequence, gave target I [R = 5-O(CH2)3NHMe] in good overall yield. The route proceeding via the Curtius rearrangement is recommended for large scale synthesis of other 3,4-dihydro-1(2H)-isoquinolinones. Only when deactivating substituents or sensitive functionality within the benzenoid ring render the high temperature ring closure of the intermediate isocyanate inefficient might a Schmidt rearrangement protocol be the method of choice. In the experiment, the researchers used 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5Safety of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one)

5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline.Safety of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

COA of Formula: C10H11NOOn September 20, 2000 ,《Beckmann rearrangements of 1-indanone oxime derivatives using aluminum chloride and mechanistic considerations》 was published in Bulletin of the Korean Chemical Society. The article was written by Lee, Byoung Se; Chu, Soyoung; Lee, In Young; Lee, Bon-Su; Song, Choong Eui; Chi, Dae Yoon. The article contains the following contents:

Hydrocarbostyril, which is a key intermediate in a new synthetic route to 6-nitroquipazine, can be prepared from 1-indanone oxime by Beckmann rearrangement. The reaction was optimized to 91% yield by using a Lewis acid, AlCl3, instead of common acids such as polyphosphoric acid, and H2SO4 used in conventional Beckmann rearrangement (20% in the literature, 10% in the authors’ experiment). The optimized condition was established with 3 equiv AlCl3 in CH2Cl2 at -40° to room temperature for 40 min. These conditions were applied to other 1-indanone derivatives, such as 4-methyl-, 4-methoxy- and 4- and 6-nitro-1-indanones. The mechanism of this reaction was proposed on the basis of the effect of temperature and substituent on product ratio, with the aid of PM3 calculation for a model system. After reading the article, we found that the author used 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5COA of Formula: C10H11NO)

5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline.COA of Formula: C10H11NO Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Bellocchi, Daniele; Macchiarulo, Antonio; Costantino, Gabriele; Pellicciari, Roberto published an article on February 15 ,2005. The article was titled 《Docking studies on PARP-1 inhibitors: insights into the role of a binding pocket water molecule》, and you may find the article in Bioorganic & Medicinal Chemistry.Safety of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one The information in the text is summarized as follows:

The binding mode of a series of competitive PARP-1 inhibitors was investigated employing a mol. docking approach by using Autodock 3.0. A particular attention was given to the role played by a water mol. present in some but not all the so far available crystal structures of the catalytic domain of PARP-1. Good correlation between calculated binding energies and exptl. inhibitory activities was obtained either by including (r2 = 0.87) or not (r2 = 0.84) the structural water mol. Closer inspection of our results suggested that this water mol. should be considered part of the hydration shell of polar inhibitors and not as a structural water.5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5Safety of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one) was used in this study.

5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline.Safety of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Name: 5-Methyl-3,4-dihydroisoquinolin-1(2H)-oneOn November 8, 2001 ,《Modeling of Poly(ADP-ribose)polymerase (PARP) Inhibitors. Docking of Ligands and Quantitative Structure-Activity Relationship Analysis》 appeared in Journal of Medicinal Chemistry. The author of the article were Costantino, Gabriele; Macchiarulo, Antonio; Camaioni, Emidio; Pellicciari, Roberto. The article conveys some information:

Poly(ADP-ribose)polymerase-1 (PARP-1) is a nuclear enzyme that has recently emerged as an important player in the mechanisms leading to postischemic neuronal death, and PARP inhibitors have been proposed as potential neuroprotective agents. With the aim of clarifying the structural basis responsible for PARP inhibition, the authors carried out a computational study on 46 inhibitors available through the literature. Our computational approach is composed of three parts. In the first one, representative PARP inhibitors have been docked into the crystallog. structure of the catalytic domain of PARP by using the Autodock 2.4 program. The docking studies thus carried out have provided an alignment scheme that has been instrumental for superimposing all the remaining inhibitors. Upon the basis of this alignment scheme, a quant. structure-activity relation (QSAR) anal. has been carried out after electrostatic and steric interaction energies have been computed with the RECEPTOR program. The QSAR anal. yielded a predictive model able to explain much of the variance of the 46-compound data set. The inspection of the QSAR coefficients revealed that the major driving force for potent inhibition is given by the extension of the contact surface between enzyme and inhibitors while electrostatic energy and hydrogen bonding capability play a minor role. Finally, the projection of the QSAR coefficients back onto the x-ray structure of the catalytic domain of PARP provides insights into the role played by specific amino acid residues. This information will be useful to address the design of new selective and potent PARP inhibitors. In addition to this study using 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one, there are many other studies that have used 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5Name: 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one) was used in this study.

5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline.Name: 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Griffin, Roger J.; Srinivasan, Sheila; Bowman, Karen; Calvert, A. Hilary; Curtin, Nicola J.; Newell, David R.; Pemberton, Louise C.; Golding, Bernard T. published their research in Journal of Medicinal Chemistry on December 17 ,1998. The article was titled 《Resistance-Modifying Agents. 5. Synthesis and Biological Properties of Quinazolinone Inhibitors of the DNA Repair Enzyme Poly(ADP-ribose) Polymerase (PARP)》.Related Products of 129075-56-5 The article contains the following contents:

Clin. studies concerning the role of poly(ADP-ribose) polymerase (PARP) in the repair of drug- and radiation-induced DNA damage have been impeded by the poor solubility, lack of potency, and limited specificity of currently available inhibitors. A series of 2-alkyl- and 2-aryl-substituted 8-hydroxy-, 8-methoxy-, and 8-methylquinazolin-4(3H)-ones has been synthesized and evaluated for PARP inhibitory activity in permeabilized L1210 murine leukemia cells. 8-Methoxy- and 8-methylquinazolinones (14-34) were readily prepared by acylation of 3-substituted anthranilamides with the appropriate acid chloride, followed by base-catalyzed cyclization. The requisite 8-hydroxyquinazolinones (6, 35-39) were synthesized by demethylation of the corresponding 8-methoxyquinazolinones with BBr3. N-Methylation of 8-methoxy-2-methylquinazolinone (15) with MeI, followed by O-demethylation by BBr3, afforded the control N3-methylquinazolinones 42 and 43, resp. In general, an 8-hydroxy or 8-Me substituent enhanced inhibitory activity in comparison with an 8-methoxy group. 2-Phenylquinazolinones were marginally less potent than the corresponding 2-methylquinazolinones, but the introduction of an electron-withdrawing or electron-donating 4′-substituent on the 2-aryl ring invariably increased potency. This was particularly evident in the 8-methylquinazolinone series (IC50 values 0.13-0.27 μM), which are among the most potent PARP inhibitors reported to date. N3-Methylquinazolinones 42 and 43 were essentially devoid of activity (IC50 values > 100 μM). In studies with L1210 cells in vitro, a concentration of 200 μM 8-hydroxy-2-methylquinazolinone (6, NU1025) (IC50 value 0.40 μM) potentiated the cytotoxicity of the monomethylating agent 5-(3-methyltriazen-1-yl)imidazole-4-carboxamide and γ-radiation 3.5- and 1.4-fold, resp., at the 10% survival level. The experimental part of the paper was very detailed, including the reaction process of 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5Related Products of 129075-56-5)

5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline. Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. Related Products of 129075-56-5

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Morgan, Rory K.; Kirby, Ilsa T.; Vermehren-Schmaedick, Anke; Rodriguez, Kelsie; Cohen, Michael S. published an article on January 10 ,2019. The article was titled 《Rational Design of Cell-Active Inhibitors of PARP10》, and you may find the article in ACS Medicinal Chemistry Letters.Related Products of 129075-56-5 The information in the text is summarized as follows:

Poly-ADP-ribose polymerases (PARPs 1-16) have emerged as major regulators of diverse cellular processes. PARPs can be subclassified based on their ability to catalyze poly-ADP-ribosylation (PARylation) or mono-ADP-ribosylation (MARylation). While much is known about the cellular roles of PARPs that catalyze PARylation (e.g., PARP1), the function of PARPs that catalyze MARylation (e.g., PARP10) is substantially less understood. This is due in large part to the lack of small-mol. inhibitors that are selective for individual PARP family members that catalyze MARylation. Herein, we describe the rational design and synthesis of selective inhibitors of PARP10. Using structure-based design, we targeted a hydrophobic subpocket within the nicotinamide-binding site of PARP10. We synthesized a series of small mols. based on a 3,4-dihydroisoquinolin-1(2H)-one (dq, 1) scaffold that contain various substituents at the C-5 and C-6 positions designed to exploit this hydrophobic subpocket. We found a dq analog (22) that contains a Me group at the C-5 position and a substituted pyridine at the C-6 position that exhibits >10-fold selectivity for PARP10 over a large subset of other PARP family members. The results of this study will serve as a platform for future small-mol. probe development for PARP10 and other PARP family members that catalyze MARylation. In the part of experimental materials, we found many familiar compounds, such as 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5Related Products of 129075-56-5)

5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline. Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. Related Products of 129075-56-5

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Yau, Lorraine; Litchie, Brenda; Thomas, Shawn; Storie, Benjamin; Yurkova, Natalia; Zahradka, Peter published an article on January 31 ,2003. The article was titled 《Endogenous mono-ADP-ribosylation mediates smooth muscle cell proliferation and migration via protein kinase N-dependent induction of c-fos expression》, and you may find the article in European Journal of Biochemistry.Electric Literature of C10H11NO The information in the text is summarized as follows:

ADP-ribosylation has been coupled to intracellular events associated with smooth muscle cell vasoreactivity, cytoskeletal integrity and free radical damage. Addnl., there is evidence that ADP-ribosylation is required for smooth muscle cell proliferation. Our investigation employed selective inhibitors to establish that mono-ADP-ribosylation and not poly(ADP-ribosyl)ation was necessary for the stimulation of DNA synthesis by mitogens. Mitogen treatment increased concomitantly the activity of both soluble and particulate mono-ADP-ribosyltransferase, as well as the number of modified proteins. Inclusion of meta-iodobenzylguanidine (MIBG), a selective decoy substrate of arginine-dependent mono-ADP-ribosylation, prevented the modification of these proteins. MIBG also blocked the stimulation of DNA and RNA synthesis, prevented smooth muscle cell migration and suppressed the induction of c-fos and c-myc gene expression. An examination of relevant signal transduction pathways showed that MIBG did not interfere with MAP kinase and phosphatidylinositol 3-kinase stimulation; however, it did inhibit phosphorylation of the Rho effector, PRK1/2. This novel observation suggests that mono-ADP-ribosylation participates in a Rho-dependent signalling pathway that is required for immediate early gene expression. In the experiment, the researchers used many compounds, for example, 5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5Electric Literature of C10H11NO)

5-Methyl-3,4-dihydroisoquinolin-1(2H)-one(cas: 129075-56-5) belongs to isoquinoline. Isoquinoline is a structural isomer of quinoline, and quinoline derivatives are fused ring compounds of pyridine and benzene rings, which have antiseptic, antipyretic and anti-cyclic properties, and can be used as antimalarial drugs and for the preparation of other antimalarial medicine. Electric Literature of C10H11NO

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem