Heterocyclic Building Blocks-Isoquinoline

Formation of a long-lived charge-separated state of a zinc phthalocyanine-perylenediimide dyad by complexation with magnesium ion was written by Fukuzumi, Shunichi;Ohkubo, Kei;Ortiz, Javier;Gutierrez, Ana M.;Fernandez-Lazaro, Fernando;Sastre-Santos, Angela. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2005.Formula: C50H62N2O4 This article mentions the following:

Photoexcitation of a zinc phthalocyanine-perylenediimide (ZnPc-PDI) dyad affords the triplet excited state without the fluorescence emission, whereas addition of Mg²⁺ to the photoexcited ZnPc-PDI results in formation of a long-lived charge-separated state (ZnPc^•+-PDI^•-/Mg²⁺) in which PDI^•- forms a complex with Mg²⁺. In the experiment, the researchers used many compounds, for example, 2,9-Di(tridecan-7-yl)anthra[2,1,9-def:6,5,10-d’e’f’]diisoquinoline-1,3,8,10(2H,9H)-tetraone (cas: 110590-84-6Formula: C50H62N2O4).

2,9-Di(tridecan-7-yl)anthra[2,1,9-def:6,5,10-d’e’f’]diisoquinoline-1,3,8,10(2H,9H)-tetraone (cas: 110590-84-6) belongs to isoquinoline derivatives. Quinoline and its derivatives are widely used as fungicides, biological agents, antibiotics, alkaloids, dyes, rubber chemicals and flavoring agents. Most traditional methods of generating isoquinoline do so via oxidative aromatization of dihydro- or tetrahydro-isoquinolines, usually offering some environmental or economic advantage.Formula: C50H62N2O4

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Reactions of 1,2,3,4-tetrahydroisoquinoline derivatives with sulfur was written by Ajzert, K. Ilona;Takacs, Kalman. And the article was included in Liebigs Annalen der Chemie in 1987.Electric Literature of C15H13N This article mentions the following:

1,2,3,4-Tetrahydroisoquinolines react with sulfur in pyridine to give two different types of products, depending on the structure of the starting compounds 1-Substituted derivatives I [R = Me, Ph, CH₂CN, 3,4-(MeO)₂C₆H₃CH₂; R¹ = H, MeO; R² = R³ = H] undergo partial dehydrogenation with formation of, the corresponding 3,4-dihydroisoquinolines I [R, R¹ = same, R²R³ = bond]. 1,2,3,4-Tetrahydroisoquinolines I (R = R³ = H; R¹ = H, MeO; R² = H, Me, PhCH₂) bearing no substituent in 1-position yield the 3,4-dihydro-1(2H)-isoquinolinethiones I [RR³ = (:S), R¹, R² = same]. In the experiment, the researchers used many compounds, for example, 1-Phenyl-3,4-dihydroisoquinoline (cas: 52250-50-7Electric Literature of C15H13N).

1-Phenyl-3,4-dihydroisoquinoline (cas: 52250-50-7) belongs to isoquinoline derivatives. Being an analog of pyridine, isoquinoline is a weak base, with a pKa of 5.14. The discovery of chloroquine, the most well-known drug containing this stent, has helped bring about decades of malaria control and treatment.Electric Literature of C15H13N

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

A Nordic registry-based study of drug treatment patterns in overactive bladder patients was written by Milsom, Ian;Schiotz, Hjalmar A.;Svensson, Maja;Kilany, Suzanne;Hansson, Fredrik. And the article was included in Scandinavian Journal of Urology in 2019.Application In Synthesis of (S)-(R)-Quinuclidin-3-yl 1-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxylate This article mentions the following:

To describe treatment patterns in Denmark, Norway and Sweden for patients receiving overactive bladder (OAB) pharmacotherapy. This was a prospective, multinational, registry-based study involving three nationwide prescribed drug registries (sample size 6000 patients per country), performed between 1 Jan. and 30 June 2014. Patients were followed prospectively for 12 mo after first pick-up of index medication. The primary objective was to evaluate the proportion of patients picking up first refill of index medication. Secondary objectives included evaluation of the average number of pick-ups collected during 1 yr and time to discontinuation of index medication. A high proportion of patients in the three Nordic countries picked up a first refill of OAB medication: 64-75% for mirabegron and 84-95% for individual antimuscarinics. Amongst treatment-naive patients, the proportion picking up their first mirabegron refill was 60-64%; for individual antimuscarinics it was 30-63%. Mean number of pick-ups during 1 yr ranged from 3.5-5.0 for mirabegron across the countries and for individual antimuscarinics from 3.8-12.3. Median time to discontinuation for mirabegron ranged from 140 (Denmark) to 207 days (Norway) and, for individual antimuscarinics (solifenacin), from 182 (Denmark) to 355 days (Sweden). At 12 mo, the proportion of patients still on treatment with mirabegron and antimuscarinics was 21% and 38%, resp. Treatment patterns in patients with OAB picking up a mirabegron or antimuscarinic prescription in Denmark, Norway and Sweden indicate that persistence remains a challenge. In the experiment, the researchers used many compounds, for example, (S)-(R)-Quinuclidin-3-yl 1-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxylate (cas: 242478-37-1Application In Synthesis of (S)-(R)-Quinuclidin-3-yl 1-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxylate).

(S)-(R)-Quinuclidin-3-yl 1-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxylate (cas: 242478-37-1) belongs to isoquinoline derivatives. The isoquinoline structure occurs in a considerable number of alkaloids in widely separated plant families. Other industrial applications include their use as corrosion inhibitors, preservatives, and as solvents for resins and terpenes.Application In Synthesis of (S)-(R)-Quinuclidin-3-yl 1-phenyl-3,4-dihydroisoquinoline-2(1H)-carboxylate

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Organic acid catalysed Minisci-type arylation of heterocycles with aryl acyl peroxides was written by Ouyang, Yani;Yue, Xiaoguang;Peng, Jiehai;Zhu, Jiashun;Shen, Qiuyuan;Li, Wanmei. And the article was included in Organic & Biomolecular Chemistry in 2022.Computed Properties of C9H6N2O2 This article mentions the following:

A metal-free method for the Minisci-type arylation of heterocycles with aryl acyl peroxides has been reported. This strategy enables the rapid and simple synthesis of a series of Minisci-type adducts from com. available starting materials without metal catalysts. A free-radical-pathway mechanism is suggested for this transformation. In the experiment, the researchers used many compounds, for example, 5-Nitroisoquinoline (cas: 607-32-9Computed Properties of C9H6N2O2).

5-Nitroisoquinoline (cas: 607-32-9) belongs to isoquinoline derivatives. Quinoline is a mancude organic heterobicyclic parent, an azaarene, an ortho-fused heteroarene and a member of isoquinolines. The discovery of chloroquine, the most well-known drug containing this stent, has helped bring about decades of malaria control and treatment.Computed Properties of C9H6N2O2

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Berberine alkaloids inhibit the proliferation and metastasis of breast carcinoma cells involving Wnt/β-catenin signaling and EMT was written by Dian, Lulu;Xu, Zhaozhen;Sun, Yanfang;Li, Jinhua;Lu, Hongfei;Zheng, Meng;Wang, Juan;Drobot, Liudmyla;Horak, Iryna. And the article was included in Phytochemistry (Elsevier) in 2022.Category: isoquinoline This article mentions the following:

Berberine alkaloids belong to the class of isoquinoline alkaloids that have been shown to possess anticancer potential, berberine exhibits inhibitory effects on breast cancer development. However, the exact mechanisms of action for anti-breast carcinoma of the alkaloids, including epiberberine, berberrubine and dihydroberberine are still unclear. MTT assay, colony formation, wound healing and transwell invasion assays detected these alkaloids suppressed proliferation, migration and invasion of breast cancer cells. Hoechst and Annexin V-FITC/PI staining were used to analyze the apoptosis of breast cancer cells. Western blotting investigated the changes noted in the expression levels of the key proteins involved in the Wnt/β-catenin signaling pathway and epithelial to mesenchymal transition (EMT). The results showed that inhibited the proliferation of breast cancer cells. Berberine alkaloids inhibited the cell cycle at G2/M phase in MCF-7 cells, but in MDA-MB-231 cells berberine alkaloids arrested the cell cycle in G0/G1 and G2/M phases. By decreasing β-catenin expression, increasing GSK-3β expression and decreasing N-cadherin expression, increasing E-cadherin expression, which proved that epiberberine, berberrubine and dihydroberberine inhibited of metastasis of breast cancer cells through Wnt signaling pathway and reversed EMT except berberine. Furthermore, berberine alkaloids exert their anti-breast cancer effects through the synergistic action of intrinsic and extrinsic pathways of apoptosis. These findings highlight the different effects of different berberine alkaloids on breast cancer cells and confirm that berberine alkaloids may be potentially used in the treatment of breast cancer. In the experiment, the researchers used many compounds, for example, 9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium (cas: 2086-83-1Category: isoquinoline).

9,10-Dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium (cas: 2086-83-1) 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.Category: isoquinoline

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Enantioselective Intermolecular [2 + 2] Photocycloaddition Reactions of 2(1H)-Quinolones Induced by Visible Light Irradiation was written by Troester, Andreas;Alonso, Rafael;Bauer, Andreas;Bach, Thorsten. And the article was included in Journal of the American Chemical Society in 2016.Product Details of 491-30-5 This article mentions the following:

In the presence of a chiral thioxanthone catalyst (10 mol %) the title compounds underwent a clean intermol. [2+2] photocycloaddition with electron-deficient olefins at λ = 419 nm. The reactions not only proceeded with excellent regio- and diastereoselectivity but also delivered the resp. cyclobutane products with significant enantiomeric excess (up to 95% ee). Key to the success of the reactions is a two-point hydrogen bonding between quinolone and catalyst enabling efficient energy transfer and high enantioface differentiation. Preliminary work indicated that solar irradiation can be used for this process and that the substrate scope can be further expanded to isoquinolones. In the experiment, the researchers used many compounds, for example, 1-Hydroxyisoquinoline (cas: 491-30-5Product Details of 491-30-5).

1-Hydroxyisoquinoline (cas: 491-30-5) belongs to isoquinoline derivatives. Quinoline is a catabolite of tryptophan, the basic structure of some antihypertensive drugs, such as the peripheral vasodilators prazosin and doxazosin. Most traditional methods of generating isoquinoline do so via oxidative aromatization of dihydro- or tetrahydro-isoquinolines, usually offering some environmental or economic advantage.Product Details of 491-30-5

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Fasudil dichloroacetate (FDCA), an orally available agent with potent therapeutic efficiency on monocrotaline-induced pulmonary arterial hypertension rats was written by Qi, Lei;Lv, Tian;Cheng, Yusheng;Yu, Min;Han, Honghao;Kong, Hui;Xie, Weiping;Wang, Hong;Zhang, Yihua;Huang, Zhangjian. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2019.Synthetic Route of C14H18ClN3O2S This article mentions the following:

Given the therapeutic efficacy of fasudil hydrochloride (F) and dichloroacetate (DCA) on pulmonary arterial hypertension (PAH), a new salt fasudil dichloroacetate (FDCA) was designed, synthesized and biol. evaluated. FDCA exhibited comparable ROCK II inhibitory activity relative to fasudil hydrochloride, and suppressed the expression of TNF-α and IL-6 in both PDGF-BB and hypoxia-treated pulmonary arterial smooth muscle cells (PASMCs) and endothelial cells (PAECs). Significantly, FDCA lowered mean pulmonary artery pressure (mPAP) and right ventricular systolic pressure (RVSP), and decreased right ventricular hypertrophy (RVH) in monocrotaline (MCT)-induced PAH rats. Meanwhile, FDCA remarkably decreased pulmonary artery medial thickness (PAMT) and hyperplasia, restoring the elasticity of elastic fiber, reduced cardiac hypertrophy, and attenuated fibrosis of heart and lung. Collectively, FDCA exhibited triple activities of pulmonary vasodilation, vascular remodeling inhibition and RVH inhibition, suggesting that it may be a promising agent for PAH intervention. In the experiment, the researchers used many compounds, for example, 5-((1,4-Diazepan-1-yl)sulfonyl)isoquinoline hydrochloride (cas: 105628-07-7Synthetic Route of C14H18ClN3O2S).

5-((1,4-Diazepan-1-yl)sulfonyl)isoquinoline hydrochloride (cas: 105628-07-7) 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. The Pomeranz–Fritsch reaction provides a method for the preparation of isoquinoline. This reaction uses a benzaldehyde and aminoacetoaldehyde diethyl acetal, which in an acid medium react to form isoquinoline.Synthetic Route of C14H18ClN3O2S

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Synthesis and Radioligand Binding Studies of C-5- and C-8-Substituted 1-(3,4-Dimethoxybenzyl)-2,2-dimethyl-1,2,3,4-tetrahydroisoquinoliniums as SK Channel Blockers Related to N-Methyl-laudanosine and N-Methyl-noscapine was written by Graulich, Amaury;Scuvee-Moreau, Jacqueline;Seutin, Vincent;Liegeois, Jean-Francois. And the article was included in Journal of Medicinal Chemistry in 2005.COA of Formula: C9H5BrN2O2 This article mentions the following:

The synthesis and the ¹²⁵I-apamin binding studies of some C(5)- and C(8)-substituted 1-(3,4-dimethoxybenzyl)-2,2-dimethyl-1,2,3,4-tetrahydroisoquinoliniums and 1-(3,4-dimethoxybenzyl)-6,6-dimethyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridiniums were performed in order to find a reversible and selective SK channel blocker structurally related to N-methyllaudanosine and N-methylnoscapine. A bulky alkyl substituent in the C-8 position of the tetrahydroisoquinoline produces a clear increase in the affinity for the apamin sensitive binding sites. The presence of an electron-withdrawing group in the C-5 and C-8 positions is not a suitable substitution for the affinity of drugs structurally related to N-methyl-laudanosine. Thiophene analogs and 8-methoxy derivatives possess a poor affinity for the apamin sensitive binding sites. Electrophysiol. studies performed with the most effective compound showed a blockade of the apamin sensitive afterhyperpolarization in rat dopaminergic neurons. In the experiment, the researchers used many compounds, for example, 5-Bromo-8-nitroisoquinoline (cas: 63927-23-1COA of Formula: C9H5BrN2O2).

5-Bromo-8-nitroisoquinoline (cas: 63927-23-1) 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. The Pomeranz–Fritsch reaction provides a method for the preparation of isoquinoline. This reaction uses a benzaldehyde and aminoacetoaldehyde diethyl acetal, which in an acid medium react to form isoquinoline.COA of Formula: C9H5BrN2O2

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Synthesis and cytotoxicity screening of derivatives of the simplified ecteinascidin pentacyclic skeleton as anticancer agents was written by Guo, Ju;Yang, Yang;Wang, Nan;Liu, Zhanzhu. And the article was included in Tetrahedron Letters in 2018.COA of Formula: C10H7NO2 This article mentions the following:

A series of new ecteinascidin pentacyclic-derived compounds bearing aryl carboxylic amide side chains at C-22, I (R = 4-FC₆H₄, 2-bromonaphthalen-6-yl, 2-thienyl, etc.) have been designed and synthesized. The cytotoxicity evaluation confirmed their potent antitumor activity by use of eight different cell lines. Studies on the structure-activity relationship of them showed that the chem. structure of C-22 pendants have great effects on the tumor-killing activity. Notably, compounds I (R = 3-chlorobenzo[b]thien-2-yl, 3-chloro-6-fluorobenzo[b]thien-2-yl, 3-chloro-6-ethylbenzo[b]thien-2-yl) with benzo[b]thiophene-2-carboxamide pendants exhibited excellent broad-spectrum antitumor activity with the low IC₅₀ values of 10^-7M. In the experiment, the researchers used many compounds, for example, Isoquinoline-1-carboxylic acid (cas: 486-73-7COA of Formula: C10H7NO2).

Isoquinoline-1-carboxylic acid (cas: 486-73-7) 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.COA of Formula: C10H7NO2

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Asymmetric Transfer Hydrogenation in Thermomorphic Microemulsions Based on Ionic Liquids was written by Hejazifar, Mahtab;Palvoelgyi, Adam Mark;Bitai, Jacqueline;Lanaridi, Olga;Bica-Schroeder, Katharina. And the article was included in Organic Process Research & Development in 2019.Electric Literature of C15H13N This article mentions the following:

A thermomorphic ionic-liquid-based microemulsion system was successfully applied for the Ru-catalyzed asym. transfer hydrogenation of ketones. On the basis of the temperature-dependent multiphase behavior of the targeted microemulsion, simple product separation as well as catalyst recycling could be realized. The use of water-soluble ligands improved the immobilization of the catalyst in the microemulsion phase and significantly decreased the catalyst leaching into the organic layer upon extraction of the product. Eventually, the optimized microemulsion system could be applied to a wide range of aromatic ketones that were reduced with good isolated yields (up to 98%) and enantioselectivities (up to 97%), while aliphatic ketones were less successful. In the experiment, the researchers used many compounds, for example, 1-Phenyl-3,4-dihydroisoquinoline (cas: 52250-50-7Electric Literature of C15H13N).

1-Phenyl-3,4-dihydroisoquinoline (cas: 52250-50-7) belongs to isoquinoline derivatives. Being an analog of pyridine, isoquinoline is a weak base, with a pKa of 5.14. Most traditional methods of generating isoquinoline do so via oxidative aromatization of dihydro- or tetrahydro-isoquinolines, usually offering some environmental or economic advantage.Electric Literature of C15H13N

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem