Heterocyclic Building Blocks-Isoquinoline

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.34551-41-2,5-Bromo-1-chloroisoquinoline,as a common compound, the synthetic route is as follows.

Step 3: Into a 500-mL round-bottom flask purged and maintained with an inertatmosphere of nitrogen, was placed a mixture of 5-bromo-1-chloroisoquinoline (17.5 g, 72.16mmol, 1.00 equiv), AcNH2 (85.8 g, 1.45 mol, 20.15 equiv) and potassium carbonate (49.0 g,354.53 mmol, 4.91 equiv). The mixture was stirred for 3 h at 180 C then it was cooled to RT and poured into 2000 mL of water with stirring. The solids were collected by filtration toprovide 12.0 g (75%) of 5-bromoisoquinolin-1-amine as a brown solid., 34551-41-2

The synthetic route of 34551-41-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; GLOBAL BLOOD THERAPEUTICS, INC.; LI, Zhe; ZANCANELLA, Manuel; YU, Chul; SETTI, Lina; SHAM, Hing; XU, Qing; YEE, Calvin; YU, Ming; (402 pag.)WO2016/201052; (2016); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

63927-23-1, 5-Bromo-8-nitroisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

63927-23-1, Iodomethane (506 mmol) was added to a solution of 5-bromo-8-nitroisoquinoline (101 mmol) in N,N-dimethylformamide (200 mL) and the reaction mixture was maintained for 16 h at 40 C. The precipitated solids were collected by filtration, washed with ether (2*250 mL), and dried to provide 5-bromo-8-nitro-N-methylisoquinolinium iodide in 83% yield as a red solid.

63927-23-1 5-Bromo-8-nitroisoquinoline 816983, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; Memory Pharmaceuticals Corporation; US2010/22581; (2010); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1350643-72-9, (S)-3-(1-Aminoethyl)-8-chloro-2-phenylisoquinolin-1(2H)-one is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Isoquinolinone 4 was prepared from compound 1 through a 3-step sequence. Compound 1 was prepared using Method I and was then converted to 2 by coupling with A-2 according to Method L. Compound 2 was converted to compound 3 according to Method M. Method L[00407] An (S)-3-(l -Aminoethyl)-isoquinolin-l(2H)-one (1-5) (115 mmol, 1.0 eq), Cl-Wd (173 mmol, 1.5 eq) and triethylamine (344 mmol, 3.0 eq) are dissolved in n-BuOH (350 mL) and the mixture is stirred at reflux for 16 h. The reaction mixture is cooled to RT and concentrated in vacuo. The residue is slurried in a mixture of H20 (200 mL) and ethyl acetate (100 mL) and stirred at RT for 30 min. The solid is then collected by filtration, rinsed with ethyl acetate (25 mL) and dried in vacuo to afford the product (L-1).[00408] General method for the elaboration of Wd heterocycles:, 1350643-72-9

1350643-72-9 (S)-3-(1-Aminoethyl)-8-chloro-2-phenylisoquinolin-1(2H)-one 66607319, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; INTELLIKINE, INC.; INFINITY PHARMACEUTICALS, INC.; REN, Pingda; LIU, Yi; LI, Liansheng; CHAN, Katrina; CASTRO, Alfredo, C.; EVANS, Catherine, A.; WO2011/146882; (2011); 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.190777-77-6,5-Bromoisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.

-1. 5-Bromo-2-methyl-2H-isoquinolin-l-one. [00116] To a mixture of 5-bromo-2H-isoquinolin-l-one (Preparation 4-1, 615 mg, 2.75 mmol) and cesium carbonate (1.79 g, 5.50 mmol) in NN-dimethylformamide (4.5 mL) and acetonitrile (1 1 mL) was added methyl iodid, 190777-77-6

The synthetic route of 190777-77-6 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOST’YU “PANACELA LABS”; GUROVA, Katerina; RYDKINA, Elena; WADE, Varren; WO2015/20553; (2015); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

6624-49-3, Isoquinoline-3-carboxylic acid is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,6624-49-3

General procedure: At 0 ¡ãC and with stirring to the solution of 865 mg (5.0 mmol) of isoquinoline-3-carboxylic acid in 10 ml of anhydrous THF 675 mg (5.0 mmol) of HOBt was added to form reaction mixture A. The solution of 5.5 mmol of l-amino acid benzylester in 5 ml of anhydrous THF was adjusted pH 9 with triethylamine and stirred for 30 min to form mixture B. At 0 ¡ãC the mixtures A and B were mixed and then 1339 mg (6.5 mmol) of DCC was added. The reaction mixture was stirred at 0 ¡ãC for 2 h, at room temperature for12 h and TLC (ethyl acetate/petroleum ether, 1:2) indicated the complete disappearance of isoquinoline-3-carboxylic acid. The formed precipitates of DCU were removed by filtration and the filtrate was evaporated under vacumm. The residue was dissolved in 50 ml of ethyl acetate and the formed solution was washed successively with saturated aqueous solution of NaHCO3 (30 ml .x. 3), 5percent aqueous solution of KHSO4 (30 ml .x. 3) and saturated aqueous solution of NaCl (30 ml .x. 3) and dried over anhydrous Na2SO4. After filtration the filtrate was evaporated under vacumm and the residure was purified on silica gel chromatography (CHCl3:MeOH, 20:1) to give the title compounds.

The synthetic route of 6624-49-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Zheng, Meiqing; Yang, Yifan; Zhao, Ming; Zhang, Xiaoyi; Wu, Jianhui; Chen, Gong; Peng, Li; Wang, Yuji; Peng, Shiqi; European Journal of Medicinal Chemistry; vol. 46; 5; (2011); p. 1672 – 1681;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

941294-25-3,941294-25-3, 1,3-Dichloro-7-fluoroisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a solution of Compound 210C (3.0 g, 14 mmol) in acetic acid (10 mL) was added 55% aqueous HI solution (5 mL) and stirred at 100 C for 16 hours. The mixture was concentrated under reduced pressure. The residue was diluted with saturated NaHCCh solution (100 mL), extracted with ethyl acetate (50 mL x 3), washed with water (50 mL) and brine (50 mL), dried over anhydrous sodium sulfate, concentrated, and purified with flash column chromatography on silica gel (ethyl acetate in petroleum ether, from 0% to 10% v/v) to afford Compound 210D. LC-MS (ESI) m/z: 182 [M+H]+; 1H-NMR (CDCh, 400 MHz): d (ppm) 7.52-7.55 (m, 1H), 7.58-7.61 (m, 1H), 7.75 (s, 1H), 7.78-7.82 (m, 1H), 9.05 (s, 1H).

As the paragraph descriping shows that 941294-25-3 is playing an increasingly important role.

Reference£º
Patent; BIOMARIN PHARMACEUTICAL INC.; WANG, Bing; CHAO, Qi; (737 pag.)WO2019/133770; (2019); 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.164148-92-9,tert-Butyl 6-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate,as a common compound, the synthetic route is as follows.

A toluene solution of 6-amino-2N-Boc-1,2,3,4-tetrahydroisoquinoline (248 mg), 2-chlorobenzothiazole (186 mg), palladium acetate (22 mg), cesium carbonate (651 mg), and Xanphos (58 mg) was stirred at 120C for 1 hour under microwave irradiation. The reaction solution was purified by column chromatography to obtain the title compound (381 mg, quantitative yield). 1H NMR (400 MHz, CDCl3) : delta (ppm) = 7.77 (1H, d, J = 8.2 Hz), 7.69 (1H, d, J = 7.8 Hz), 7.40-7.29 (3H, m), 7.25-7.19 (2H, m), 4.69 (2H, s), 3.70 (2H, t, J = 5.3 Hz), 2.90 (2H, t, J = 5.7 Hz), 1.50 (9H, s).

164148-92-9, The synthetic route of 164148-92-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Daiichi Sankyo Company, Limited; EP2256105; (2010); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1350643-72-9, (S)-3-(1-Aminoethyl)-8-chloro-2-phenylisoquinolin-1(2H)-one is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A solution of amine 1 (3.35 mmol, 1.0 equiv) in methylene chloride (40 mL) was cooled to 0 C. and charged with triethylamine (1.0 equiv) and trifluoroacetic anhydride (1.0 equiv). The resulting mixture was stirred for 15 min then partitioned between ethyl acetate and a saturated aqueous sodium bicarbonate solution. The organic phase was separated, dried with sodium sulfate and concentrated to afford compound 251. ESI-MS m/z: 395.2 [M+H]+., 1350643-72-9

1350643-72-9 (S)-3-(1-Aminoethyl)-8-chloro-2-phenylisoquinolin-1(2H)-one 66607319, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; Intellikine LLC; Infinity Pharmaceuticals, Inc.; CASTRO, Alfredo C.; CHAN, Katrina; EVANS, Catherine A.; JANARDANANNAIR, Somarajannair; LESCARBEAU, Andre; LI, Liansheng; LIU, Tao; LIU, Yi; REN, Pingda; SNYDER, Daniel A.; TREMBLAY, Martin R.; US2013/267521; (2013); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

164148-92-9, tert-Butyl 6-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Preparation of intermediate 235 was performed via 2 reactions as reported below.Reaction 1: N-bromosuccinimide (716 mg; 4.03 mmol) was added portionwise at 0C to a solution of t-Butyl-6-amino-3,4-dihydroisoquinoline-2-carboxylate (1 g; 4.03 mmol) inDCM (20 mL). The reactiocn mixture was stirred at room temperature for 2 hours, poured onto a 10% aqueous solution of K2C03 and extracted with DCM.Reaction 2: N-bromosuccinimide (2.08 g; 11.68 mmol) was added portionwise at 0C to a solution of t-Butyl-6-amino-3,4-dihydroisoquinoline-2-carboxylate (2.9 g; 11.68 mmol) inC (60 mL). The reaction mixture was stirred at room temperature for 2 hours, poured onto a 10% aqueous solution of K2C03 and extracted with DCM.The two residues were combined and purified by chromatography over silica gel (irregular SiOH, 80g; mobile phase: gradient from 20% EtOAc, 80% heptane to 40% EtOAc, 60%hetptane). The pure fractions were collected and evaporated to dryness yielding 2.8 g (54%) of intermediate 235.

164148-92-9, 164148-92-9 tert-Butyl 6-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate 2756371, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; JANSSEN PHARMACEUTICA NV; STANSFIELD, Ian; QUEROLLE, Olivier, Alexis, Georges; LIGNY, Yannick, Aime, Eddy; GROSS, Gerhard, Max; JACOBY, Edgar; MEERPOEL, Lieven; GREEN, Simon, Richard; HYND, George; KULAGOWSKI, Janusz, Jozef; MACLEOD, Calum; MANN, Samuel, Edward; (419 pag.)WO2018/2219; (2018); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

164148-92-9, tert-Butyl 6-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Step-3: Synthesis of tert-butyl 6-((1-(2-(2-fluoropropan-2-yl)pyridin-4-yl)-2-isopropyl-3-oxo-2,3-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)amino)-3,4-dihydroisoquinoline-2(1H)-carboxylate To a stirred solution of 1-(2-(2-fluoropropan-2-yl)pyridin-4-yl)-2-isopropyl-6-(methylthio)-1,2-dihydro-3H-pyrazolo[3,4-d]pyrimidin-3-one (150 mg, 0.415 mmol, 1.0 eq) in (5 mL) of toluene was added m-CPBA (143.4 mg, 0.830 mmol, 2.0 eq) and allowed to stir at rt for 30 min. tert-butyl 6-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate (123 mg, 0.498 mmol, 1.2 eq) and DIPEA (0.3 mL, 1.662 mmol, 4.0 eq) were added and allowed to stir at 80 C. for overnight. Solvent was evaporated and reaction mass was diluted with water and extracted with EtOAc (30 mL*2). The combined organic layer were dried over sodium sulphate, concentrated under reduced pressure purified by column chromatography (Combiflash, elution-0-70% EtOAc in Hexane) to afford the desired compound, tert-butyl 6-((1-(2-(2-fluoropropan-2-yl)pyridin-4-yl)-2-isopropyl-3-oxo-2,3-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)amino)-3,4-dihydroisoquinoline-2(1H)-carboxylate (52 mg, 22.30%) as yellow liquid.

164148-92-9, As the paragraph descriping shows that 164148-92-9 is playing an increasingly important role.

Reference£º
Patent; giraFpharma LLC; Chakravarty, Sarvajit; PHAM, Son Minh; Kankanala, Jayakanth; AGARWAL, Anil Kumar; PUJALA, Brahmam; SONI, Sanjeev; ARYA, Satish K.; PALVE, Deepak; Gupta, Ashu; KUMAR, Varun; (498 pag.)US2019/106427; (2019); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem