Tag: M.W:300-400

Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, the author is Fleming, Cassandra L. and a compound is mentioned, 423146-25-2, 6-(6-Morpholino-1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)hexanoic acid, introducing its new discovery. 423146-25-2

A fluorescent histone deacetylase (HDAC) inhibitor for cellular imaging

Fluorescence microscopy studies using 4-morpholinoscriptaid (4MS) demonstrated rapid cellular uptake of this scriptaid analogue into the cytoplasm but no nuclear penetration. As 4MS and scriptaid have the same in vitro activity against HDACs and KASUMI-1 cells; 4MS exemplifies a rational approach to subtly modify ‘profluorogenic’ substrates for intracellular studies.

Interested yet? Keep reading other articles of 189028-93-1!, 423146-25-2

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Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

 

893566-75-1, Tert-butyl 8-bromo-3,4-dihydroisoquinoline-2(1H)-carboxylate is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,893566-75-1

Compound 14.2 (200 mg, 0.64 mmol) was dissolved in dry tetrahydrofuran (10 ml) andcooled to -78 O (dry ice, acetone). nButyllithium (2.4M in hexanes, 0.40 ml, 0.96 mmol) wasadded dropwise then the mixture was stirred at -78 00 for 1 h. Dry N,N-dimethylformamide (0.1 ml, 1.29 mmol) was added then stirring continued at 780C for 30 mm before allowing to RT for 1 h. The reaction mixture was quenched with water then extracted three times with ethyl acetate. The organic extract was dried over sodium sulfate, filtered and evaporated.The residue was purified via flash silica chromatography (DCM I EtOAc 5percent) to provide compound 14.3 (80 mg, 45percent) as a colourless oil. 1H NMR (CDCI3, 400 MHz) O 1.35 (5, 9H), 2.90 (m, 2H), 3.65 (m, 2H), 5.02 (5, 2H), 7.36 (m, 2H), 7.67 (t, 1H), 10.13 (5, 1H). UPLC-MS (short basic) rt 0.85 (262 [M+H]), 95percent pure.

As the paragraph descriping shows that 893566-75-1 is playing an increasingly important role.

Reference£º
Patent; THE UNIVERSITY OF SHEFFIELD; RICHARDS, Gareth; SKERRY, Timothy, M.; HARRITY, Joseph, P.A.; ZIRIMWABAGABO, Jean-Olivier; TOZER, Matthew, J.; GIBSON, Karl, Richard; PORTER, Roderick, Alan; BLANEY, Paul, Matthew; GLOSSOP, Paul, Alan; (369 pag.)WO2018/211275; (2018); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

 

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.58-74-2,1-(3,4-Dimethoxybenzyl)-6,7-dimethoxyisoquinoline,as a common compound, the synthetic route is as follows.

Using a method previously reported by Bremner et al. [40], the free base of papaverine (1b, 0.50 g,1.5 mmol) was dissolved in CHCl3 (10 mL) and treated portion wise with MCPBA (0.35 g, 2.4 mmol)over 5 min. After completion of the addition, the solution was stirred at room temperature for 19h. The colorless precipitate that formed was filtered and the filtrate was extracted with 5% NaOH(3 25 mL). The CHCl3-soluble material was dried down then recrystallized from acetone to yieldpure papaverine N-oxide (12, 310 mg, 58%)., 58-74-2

58-74-2 1-(3,4-Dimethoxybenzyl)-6,7-dimethoxyisoquinoline 4680, aisoquinoline compound, is more and more widely used in various fields.

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Article; Egbewande, Folake A.; Coster, Mark J.; Jenkins, Ian D.; Davis, Rohan A.; Molecules; vol. 24; 21; (2019);,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

 

58-74-2, 1-(3,4-Dimethoxybenzyl)-6,7-dimethoxyisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

EXAMPLE IV 6,7-Dimethoxy-1-(alpha-morpholinomethyl)-veratrylisoquinoline dihydrochloride (P3313) A mixture of 8 g (0.024 mole) of papaverine, 0.93 g (0.031 mole) of paraformaldehyde, 2.62 g (0.030 mole) of morpholine, 2.5 ml of concentrated hydrochloric acid, and 100 ml of ethyl alcohol was stirred and heated at reflux for 8 hours. The reaction mixture was cooled at -5C for 24 hours. The cooled reaction mixture was filtered to remove 1.5 g of papaverine hydrochloride. The filtrate was evaporated to a thick residue. This was dissolved in 100 ml of water and the solution made basic by the addition of 10N sodium hydroxide solution. The basic mixture was extracted with three 100 ml portions of ether. The ether extracts were combined, dried over anhydrous magnesium sulfate and filtered. The product was precipitated from the ether solution by the addition of hydrogen chloride. The precipitated solid was collected on a filter and recrystallized twice from isopropyl alcohol to yield 4.0 g of product melting at 182-184C. The infrared spectrum was consistent with the assigned structure. Analysis – Calculated for C25 H32 Cl2 N2 O5: C, 58.70; H, 6.32; Cl, 13.86; N, 5.48. Found: C, 58.91; H, 6.30; Cl, 13.37; N, 5.34.

58-74-2, The synthetic route of 58-74-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Armour Pharmaceutical Company; US3966724; (1976); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

 

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.893566-75-1,Tert-butyl 8-bromo-3,4-dihydroisoquinoline-2(1H)-carboxylate,as a common compound, the synthetic route is as follows.,893566-75-1

Example 144: 1,1,1,3,3,3-Hexafluoropropan-2-yl 1-((2-ethyl-1,2,3,4-tetrahydroisoquinolin-8- yl)methyl)-1,8-diazaspiro[4.5]decane-8-carboxylate Step 1: Preparation of ter -but l 8-form l-1,2,3,4-tetrah droisoquinoline-2-carboxylate A flask was charged with tert-butyl 8-bromo-1,2,3,4-tetrahydroisoquinoline-2-carboxylate (3.11 g, 9.93 mmol, 1.00 equiv) and THF (50 mL) under nitrogen. The reaction mixture was cooled to?78 ^C and n-butyllithium (2.5 M in hexane, 6 mL, 15.1 mmol, 1.50 equiv) was added dropwise. The reaction mixture was stirred at?78 ^C for 2 h, then DMF (1.46 g, 19.9 mmol, 2.00 equiv) was added dropwise. The resulting solution was stirred for 2 h at?78 ^C, quenched with aq. NH4Cl (10 mL) and diluted with EtOAc (100 mL). The mixture was washed with H2O (3 x 100 mL), dried over anhydrous Na2SO4, filtered, and concentrated. The residue was purified on a silica gel column (1:5 EtOAc/petroleum ether) to provide 1.81 g (69percent yield) of tert-butyl 8-formyl-1,2,3,4- tetrahydroisoquinoline-2-carboxylate as a yellow solid. LCMS (ESI, m/z): 262 [M+H]+.

893566-75-1 Tert-butyl 8-bromo-3,4-dihydroisoquinoline-2(1H)-carboxylate 59463272, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; ABIDE THERAPEUTICS, INC.; BUZARD, Daniel J.; SHAGHAFI, Michael B.; CISAR, Justin S.; GRICE, Cheryl A.; JONES, Todd K.; WEBER, Olivia D.; (277 pag.)WO2017/197192; (2017); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

 

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.925672-85-1,1,6-Dibromoisoquinolin-3-amine,as a common compound, the synthetic route is as follows.,925672-85-1

6-Bromoisoquinolin-3-amine: A mixture of 1,6-dibromoisoquinolin-3- amine (13.5 g, 45 mmol), ammonium formate (10.8 g, 172 mmol) and tetrakis(triphenylphosphine)palladium (0) (3.45 g, 3.0 mmol) in 50 mL of DMF was sealed in a 350 mL screw-cap flask and heated at 50 C for 48 h. To the reaction was added tetrakis(triphenylphosphine)palladium (0) (950 mg) and ammonium formate (3.0 g) and the mixture was heated at 50 C for 48 h. The mixture was cooled to room temperature and the solid was filtered, washed with a minimal amount of DMF, washed with Et2theta and dried in vacuo at 50 C to give the product as a yellow amorphous solid (10.4 g, 90 %) LCMS (API-ES) m/z: 222.9, 224.9 [M+ 1]. 1H NMR (300 MHz, DMSO- d6) delta ppm 8.81 (s, 1 H), 7.80 (d, J=I .6 Hz, 1 H), 7.73 (d, J=8.8 Hz, 1 H), 7.22 (dd, J=8.6, 1.9 Hz, 1 H), 6.55 (s, 1 H), 6.12 (s, 2 H).

As the paragraph descriping shows that 925672-85-1 is playing an increasingly important role.

Reference£º
Patent; AMGEN INC.; WO2009/11871; (2009); A2;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

 

58-74-2, 1-(3,4-Dimethoxybenzyl)-6,7-dimethoxyisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To an 8 mL dram vial was added iodobenzene diacetate (0.6 mmol, 1.5 equiv), arene (0.4 mmol,1 eq.), dichloroethane (2 mL), then 1 M hydrochloric acid (2 mL, 5 equiv). The solution wasallowed to stir (1000 rpm) at 50 C for the indicated amount of time. After which the solution waswashed with saturated sodium bicarbonate, followed by saturated sodium thiosulfate andconcentrated. The crude mixture was then purified by column chromatography.

58-74-2, The synthetic route of 58-74-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Fosu, Stacy C.; Hambira, Chido M.; Chen, Andrew D.; Fuchs, James R.; Nagib, David A.; Chem; vol. 5; 2; (2019); p. 417 – 428;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

 

925672-85-1, 1,6-Dibromoisoquinolin-3-amine is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,925672-85-1

6-Bromoisoquinolin-3-amine: A mixture of 1,6-dibromoisoquinolin-3- amine (13.5 g, 45 mmol), ammonium formate (10.8 g, 172 mmol) and tetrakis(triphenylphosphine)palladium (0) (3.45 g, 3.0 mmol) in 50 mL of DMF was sealed in a 350 mL screw-cap flask and heated at 50 C for 48 h. To the reaction was added tetrakis(triphenylphosphine)palladium (0) (950 mg) and ammonium formate (3.0 g) and the mixture was heated at 50 C for 48 h. The mixture was cooled to room temperature and the solid was filtered, washed with a minimal amount of DMF, washed with Et2theta and dried in vacuo at 50 C to give the product as a yellow amorphous solid (10.4 g, 90 %) LCMS (API-ES) m/z: 222.9, 224.9 [M+ 1]. 1H NMR (300 MHz, DMSO- d6) delta ppm 8.81 (s, 1 H), 7.80 (d, J=I .6 Hz, 1 H), 7.73 (d, J=8.8 Hz, 1 H), 7.22 (dd, J=8.6, 1.9 Hz, 1 H), 6.55 (s, 1 H), 6.12 (s, 2 H).

The synthetic route of 925672-85-1 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; AMGEN INC.; WO2009/11871; (2009); A2;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

 

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.925672-85-1,1,6-Dibromoisoquinolin-3-amine,as a common compound, the synthetic route is as follows.,925672-85-1

Preparation of intermediate 6-bromoisoquinolin-1-d-3-amine (XI) is depicted below in Scheme 4. RRN 12Step 1 (0813) To a mixture of 13 1,6-dibromoisoquinolin-3-amine (X) (0.5 g, 1.66 mmol), 14 ammonium formate-d5 (0.56 g, 8.28 mmol) and 15 Pd(PPh3)4 (191.3 mg, 0.170 mmol) in 16 DMF (5 mL) was heated to 50 C. for 48 h. The solvents were concentrated and the residue was suspended in 17 chloroform. The solid was collected by filtration and washed with water and EtOAc. The solid were dried under high vacuo to obtain 18 6-bromo-1-deuterio-isoquinolin-3-amine (XI) (115 mg, 0.513 mmol, 31.0% yield) as a pale yellow solid. 1H NMR (500 MHz, DMSO-d6) delta ppm 6.11 (2H, s), 6.55 (1H, s), 7.22 (1H, dd, J=8.78, 1.92 Hz), 7.73 (1H, d, J=8.51 Hz), 7.79 (1H, d, J=1.92 Hz); ESIMS found for C9H6DBrN2 m/z 224.0 (79BrM+H).

925672-85-1 1,6-Dibromoisoquinolin-3-amine 16049917, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; Samumed, LLC; KC, Sunil Kumar; Mittapalli, Gopi Kumar; Hofilena, Brian Joseph; Marakovits, Joseph Timothy; Chiruta, Chandramouli; Mak, Chi Ching; Cao, Jianguo; (324 pag.)US2017/313681; (2017); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

 

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.151004-88-5,(R)-N-Cbz-3,4-dihydro-1H-isoquinolinecarboxylic acid,as a common compound, the synthetic route is as follows.

To N-Benzyloxycarbonyl-D-1,2, 3, 4-tetrahydro-isoquinoline-1-carboxylic acid (3.11 g, 10 mmol, made from commercially available D-1,2, 3, 4-tetrahydro- ISOQUINOLINE-1-CARBOXYLIC acid and O-BENZYLOXYCARBONYL-N-HYDROXYSUCCINAMIDE) in THF (10 mL) was added BH3 (1M solution in THF; 30 mL, 30 mmol) over 5 min, and the reaction mixture was stirred for 3 hours. Acetic acid (9 mL) in MEOH (90 mL) was added and the mixture was stirred for 30 min. Solvents were evaporated, the residue was taken up in EtOAc and was washed with saturated aqueous NAHC03 (90 mL, aq. phase pH 7-8) and brine. The organic layer was dried over NA2S04 and concentrated to give compound 13a (2.97 g, 100%). MS (CI) M/Z 253.9 (MH+-CO2), 297. 9 (MH+) ; TR = 2.695 min (method 4)., 151004-88-5

The synthetic route of 151004-88-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; NEUROCRINE BIOSCIENCES, INC.; WO2005/7164; (2005); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem