Category: tetrahydroisoquinoline

Chemical Research Letters, May 2021. Research speed reading in 2021. Application of 118864-75-8, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 118864-75-8, Name is (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, molecular formula is C15H15N. In a Patent，once mentioned of 118864-75-8

The present invention relates to a process for the preparation of Solifenacin succinate by condensing a compound of formula (IVb) with (RS)-3-quinuclidinol, wherein, R represents methyl, ethyl, isopropyl; to produce a diastereomeric mixture of (1S)-3,4-dihydro-1-phenyl-2(1H)-isoquinolinecarboxylic acid (3RS)-1-azabicyclo[2.2.2]oct-3-yl ester, which is treated with succinic acid in a solvent or mixture of solvents to produce optically pure Solifenacin succinate, Formula (X).

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

New Advances in Chemical Research, May 2021.Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. Reference of 61563-33-5, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 61563-33-5, name is 8-Chloro-1,2,3,4-tetrahydroisoquinoline hydrochloride. In an article，Which mentioned a new discovery about 61563-33-5

A novel series of carbamothioylamino-benzene-sulfonamide-thiophene-carboxylates 4a-c and thieno[3,2-d]pyrimidin-2-yl-amino-benzene-sulfonamides 5a-c were synthesized in a series of synthetic steps and were used as key intermediates for the synthesis of thienotriazolopyrimidine-benzene-sulfonamide derivatives 6a-c and 7a-c. Thieno[3,2-d]pyrimidinones (8 and 9) were also prepared. Compound 9 was used as an intermediate for the synthesis of imidazole/1,2,4-triazole and tetrazine functionalized thieno[3,2-d]pyrimidine derivatives (10-12). Pyrrole derivatives/pyrrolopyrimidine/pyrrolotriazolopyrimidine functionalized thiophenes (15-19) were also synthesized. Structures of the newly synthesized compounds were established by elemental analysis and spectral data. Most of the newly synthesized compounds were evaluated for their in vitro activity against three human tumor cell lines, namely, liver cancer (HepG-2), colon cancer (HT-29) and lung cancer (NCI-H460), using doxorubicin as standard. Compounds 16 (GI50 = 0.02, 0.04 and 0.06 mumol L-1, resp.) and 19b (GI50 = 0.02, 0.03 and 0.05 mumol L-1, resp.) showed higher activity against all cell lines than doxorubicin. Most of the compounds were also screened for antibacterial activity using ciprofloxacin as standard drug. Compounds 4b and 6b, both containing benzenesulfonamide linked to N-, 10 bearing imidazole moiety, and 15 and 19b,c with a thiophene-2-carboxylic acid chain, exhibited high activity against Gram-positive and Gram-negative bacteria.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Chemical Research Letters, May 2021. Research speed reading in 2021. Quality Control of 6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 1745-07-9, Name is 6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline, molecular formula is C11H15NO2. In a Patent，once mentioned of 1745-07-9

The invention relates to a new class of compounds with high affinity and selectivity towards P-glycoprotein. The invention also relates to the utilization of such compounds in the in vivo diagnosis of neurodegenerative diseases and as medicaments for use in the prevention and treatment of neurodegenerative disease involving P-glycoprotein.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Research speed reading in 2021. Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent，Which mentioned a new discovery about Reference of 57196-62-0, molcular formula is C10H14ClNO, introducing its new discovery. , Reference of 57196-62-0

The present invention relates to carboxamide compounds of general formula I 1 wherein the groups and residues A, B, W, X, Y, Z, R1, R2, R3 and k have the meanings given in claim 1. Moreover the invention relates to process for preparing the above mentioned carboxamides as well as pharmaceutical compositions containing at least one carboxamide according to the invention. In view of their MCH-receptor antagonistic activity the pharmaceutical compositions according to the invention are suitable for the treatment of metabolic disorders and/or eating disorders, particularly obesity, bulimia, anorexia, hyperphagia and diabetes.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Research speed reading in 2021. Application of 170097-67-3, Chemistry is a science major with cience and engineering. The main research directions are chemical synthesis, new energy materials, preparation and modification of special coatings. 170097-67-3, Name is 2-(tert-Butoxycarbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid, molecular formula is C15H19NO4. In a Patent，once mentioned of 170097-67-3

Described herein are compounds and compositions that modulate the activity of beta-lactamases. In some embodiments, the compounds described herein inhibit beta-lactamase. In certain embodiments, the compounds described herein are useful in the treatment of bacterial infections.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

New Advances in Chemical Research in 2021. Chemistry is a science major with cience and engineering. The main research directions are chemical synthesis, and research on the structure and performance of functional materials.In a patent, 1745-07-9, name is 6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline, introducing its new discovery. Application of 1745-07-9

The authors have prepared a series of tetrahydro-beta-carbolines (THbetaC), beta-carbolines (beta-C), and other nitrogen heterocycles and evaluated them in vitro with respect to their ability to bind to benzodiazepine receptors. The fully aromatic beta-C’s were more potent than their corresponding THbetaC derivatives. When substituents possessing a carbonyl (CO2Me, COCH3, CHO) were introduced at the beta-C 3-position the in vitro potency was augmented. Alcohol substituents (CH2OH, CHOHCH3) demonstrated decreased in vitro potency. The importance of the carbonyl moiety was further demonstrated when beta-carboline-3-carboxylic acid was shown to bind tighter to benzodiazepine receptors at lower pH. A lower pH increases the concentration of the acid and decreases the concentration of the anion. 3-(Hydroxymethyl)-beta-carboline, 3-formyl-beta-carboline and 3-acetyl-beta-carboline were benzodiazepine antagonists in vivo. Methyl isoquinoline-3-carboxylate also had in vitro activity. The same structure-activity relationships seen in beta-C’s were also observed for isoquinolines.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

New research progress on 1745-07-9 in 2021. name: 6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 1745-07-9, molcular formula is C11H15NO2, introducing its new discovery.

Overexpression of the ATP-binding cassette (ABC) transport proteins, like ABCB1, commonly referred to as P-glycoprotein (P-gp), initiates active efflux of a broad spectrum of unrelated chemotherapeutic drugs in structure and function, leading to chemotherapy failure. A series of 2-((pyridin-4-ylmethyl)amino)nicotinamide derivatives as potent reversal agents against P-glycoprotein-mediated multidrug resistance (MDR) were designed and synthesized. The majority of target compounds displayed great reversal potency, especially 9n. In-depth studies demonstrated 9n has high potency (EC50 = 119.6 ± 6.9 nM), low cytotoxicity, and long duration (>24 h) in reversing adriamycin (ADM) resistance in K562/A02 cells. 9n also improved the effects of other cytotoxic agents related to MDR, increased accumulation of ADM, interrupted P-gp-mediated Rh123 efflux function, and suppressed P-gp ATPase activity in K562/A02 MDR cells. The Western blot analysis indicated that the MDR reversal by 9n was not due to a decrease in protein expression. Besides, the effect of CYP3A4 was not influenced by 9n, avoiding the toxicity caused by drug interactions. The study yielded 9n with superior properties compared to the classical inhibitor verapamil (VRP) and leading compound apatinib.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Research speed reading in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. An article , which mentions Related Products of 1745-07-9, molecular formula is C11H15NO2. The compound – 6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline played an important role in people’s production and life., Related Products of 1745-07-9

A novel series of ferulic acid derivatives was designed and synthesized on the basis of the multi-target-directed ligands strategy for the treatment of Alzheimer’s disease (AD). In vitro results revealed that all the target compounds were highly effective and selective butyrylcholinesterase (BuChE) inhibitors. In particular, compound TM-10 showed the best BuChE inhibitory activity, with IC50 = 8.9 nM, and remarkable monoamine oxidase A and B inhibitory potency, with IC50 = 6.3 and 8.6 muM, respectively. TM-10 could inhibit (53.9%) and disaggregate (43.8%) self-induced amyloid-beta peptide (Abeta) aggregation. In addition, TM-10 exhibited potent antioxidant activity (ORAC = 0.52 equiv) and neuroprotective effect against Abeta1-42-mediated SH-SY5Y neurotoxicity, and it acted as an autophagic activator. TM-10 also showed good blood-brain barrier penetration. Furthermore, TM-10 exhibited a favorable dyskinesia recovery rate and response efficiency on an AlCl3-induced zebrafish AD model and a potent neuroprotective effect on Abeta1-40-induced zebrafish vascular injury. Further, in vivo assays demonstrated that TM-10 showed low acute toxicity, and the step-down passive avoidance test indicated that this compound could improve scopolamine-induced memory deficit in mice. Therefore, the present study displays evidence that TM-10 is a potent, multi-functional agent against AD and could be a promising lead candidate for anti-Alzheimer’s disease drug development.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

New research progress on 33537-97-2 in 2021. 33537-97-2, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 33537-97-2, molcular formula is C9H11Cl2N, introducing its new discovery.

There is provided an imidazole derivative useful as a thrombosis treating agent, which is represented by the formula (I): wherein R represents an optionally substituted cyclic hydrocarbon group or an optionally substituted heterocyclic group, W represents a bond or an optionally substituted divalent linear hydrocarbon group, X represents an optionally substituted divalent hydrocarbon group, Y represents -CO-, -S(O)-, -S(O)2- or a bond, ring A represents an optionally substituted pyrrolidine ring, an optionally substituted piperidine ring or an optionally substituted perhydroazepine ring, Z1 and Z3 independently represent a bond or an optionally substituted divalent linear hydrocarbon group, Z2 represents -N(R1)-, -O-, – S(O)-, -S(O)2-, -CO-, -CH(R1)- or a bond, ring B represents an optionally substituted imidazole ring, wherein a substituent which the optionally substituted imidazole ring represented by ring B may have may be taken together with R1 to form an optionally substituted ring, and a represents 0, 1 or 2.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

New discoveries in chemical research and development in 2021. In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Safety of (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 118864-75-8, name is (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline. In an article，Which mentioned a new discovery about 118864-75-8

Asymmetric hydrogenation of 1-aryl-3,4-dihydroisoquinolines using the [IrCODCl]2/(R)-3,5-diMe-Synphos catalyst is reported. Under mild reaction conditions, this atom-economical process provides easy access to a variety of enantioenriched 1-aryl-1,2,3,4-tetrahydroisoquinoline derivatives, which are important pharmacophores found in several pharmaceutical drug candidates, in high yields and enantiomeric excesses up to 99% after a single crystallization.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem