Category: isoquinoline

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1350643-72-9,(S)-3-(1-Aminoethyl)-8-chloro-2-phenylisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.

Example 58 [0842] [0843] To a suspension of amine 1 (1.34 mmol, 1.0 equiv) in DMF (12 mL) was added DIEA (3.68 mmol, 2.0 equiv), and then Boc-anhydride (1.47 mmol, 1.1 equiv). The reaction mixture was stirred at RT overnight after which it was quenched with 6 M NaOH (100 muL) and stirred for 15 min, then diluted with water (60 mL) and HOAc (1 mL) and stirred in an ice bath for 30 min. The resulting precipitate was collected by filtration, washed with water (4¡Á10 mL) and dried in vacuo to provide the carbamate 63. ESI-MS m/z: 399.05 [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

22246-02-2, 6-Chloro-3,4-dihydroisoquinolin-1(2H)-one is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

In a 25 mL sealed tube, (5-bromo-pyridin-3-yl)-methanol (900 mg, 4.8 mmol), 6-chloro- 3,4-dihydro-2H-isoquinolin-l-one (intermediate A-2) (800 mg, 4.4 mmol), Cul (200 mg, 1.1 mmol), CS2CO3 (3.0 g, 9.2 mmol) and (+)-(S,S)-l,2-diaminocyclohexane (0.4 mL, 3.2 mmol) were dissolved in dioxane (8.0 mL). The resulting reaction mixture was heated at 150 C for 3 hours before it was poured into H20 (50 mL) and extracted with EtOAc (2 x 125 mL). The organic layer was washed with brine, dried over anhy. Na2S04, filtered and concentrated in vacuo to give a crude product which was purified by silica gel flash chromatography (30-100% EtOAc-hexane gradient) to yield the title compound (1.1 g, 90%) as a light yellow solid. MS: 289.2 (M+H+)., 22246-02-2

As the paragraph descriping shows that 22246-02-2 is playing an increasingly important role.

Reference£º
Patent; F. HOFFMANN-LA ROCHE AG; AEBI, Johannes; AMREIN, Kurt; CHEN, Wenming; HORNSPERGER, Benoit; KUHN, Bernd; LIU, Yongfu; MAERKI, Hans P.; MAYWEG, Alexander V.; MOHR, Peter; TAN, Xuefei; WANG, Zhanguo; ZHOU, Mingwei; WO2013/79452; (2013); 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.63927-23-1,5-Bromo-8-nitroisoquinoline,as a common compound, the synthetic route is as follows.

63927-23-1, xample 16 – Synthesis of Compound 26 and Compound 48; 1. A slurry of 720 mg (2.85 mmol) 5-bromo-8-nitroisoquinoline and 2.48 g (4.27 mmol) magnesium monoperoxyphthalate hexahydrate (85%) in 11 ml 2-propanol was stirred for 6 days at room temperature. The reaction mixture was diluted with brine. The solids were filtered off, washed well with water and dried under vacuum yielding 5-bromo-8-methyl-isoquinoline 2-oxide as yellow solid; HPLC/MS: 1.52 min [M+H] 269/271 .

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

Reference£º
Patent; MERCK PATENT GMBH; DORSCH, Dieter; JONCZYK, Alfred; HOELZEMANN, Guenter; AMENDT, Christiane; ZENKE, Frank; WO2012/595; (2012); 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

Intermediate 34: 1 ,1-Dimethylethyl 6-r(1 H-pyrazol-4-ylcarbonyl)aminol-3,4-dihvdro- 2(1 HVisoalphauinolinecarboxylate; To a solution of 1 H-pyrazole-4-carboxylic acid (800 mg, 7.1 mmol), N-(3- dimethylaminopropyl)-N’-ethylcarbodiimide hydrochloride (1.48 g, 7.74 mmol), 1- hydroxybenzotriazole hydrate (1.04 g, 7.74 mmol) and triethylamine (1.8 ml_, 12.9 mmol) in DCM was added 1 , 1 -dimethylethyl 6-amino-3,4-dihydro-2(1 /-/)- isoquinolinecarboxylate (1.6 g, 6.45 mmol) and the reaction mixture was stirred at room temperature for 9 days. The organic phase was washed with 1 N sodium hydroxide, dried over Na2SO4, filtered and evaporated under reduced pressure. The residue was purified by flash column chromatography eluting with DCM/MeOH: 90/10 to give the title compound as a solid (580 mg, 24%). LC/MS: m/z 341 (M-H)+, Rt: 2.70 min.

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

Reference£º
Patent; SMITHKLINE BEECHAM CORPORATION; WO2008/74824; (2008); A2;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

90806-58-9, 5-Methoxyisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,90806-58-9

To a stirred solution of Cap 138, step a (2.34 g, 14.7 mmol) in anhydrous dichloromethane (50 mL) at room temperature was added meta-chloroperbenzoic acid (77%, 3.42 g, 19.8 mmol) in one portion. After being stirred for 20 h, powdered potassium carbonate (2.0 g) was added and the mixture was stirred for 1 h at room temperature before it was filtered and concentrated to afford Cap-138, step b as a pale, yellow solid which was sufficiently pure to carry forward (2.15 g, 83.3%). 1H NMR (CDCl3, 400 MHz) delta 8.73 (d, J=1.5 Hz, 1H), 8.11 (dd, J=7.3, 1.7 Hz, 1H), 8.04 (d, J=7.1 Hz, 1H), 7.52 (t, J=8.1 Hz, 1H), 7.28 (d, J=8.3 Hz, 1H), 6.91 (d, J=7.8 Hz, 1H), 4.00 (s, 3H); Rt 0.92 min, (Cond.-D1); 90% homogenity index; LCMS: Anal. Calc. for [M+H]+ C10H10NO: 176.07; found: 176.0.

As the paragraph descriping shows that 90806-58-9 is playing an increasingly important role.

Reference£º
Patent; Bristol-Myers Squibb Company; US2009/233925; (2009); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

18881-17-9, (S)-(1,2,3,4-Tetrahydroisoquinolin-3-yl)methanol is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,18881-17-9

j.jcpation2.e: tert-Butyl [(35)-I ,2,3,4-tctrahydroisoquinoIin-3-yImetby1carbamateStep A: Benzj?t (3S)-3(IsydroxymetIiy1)-3,4-diJiydro-1H-isoquinoIine-2-carboxyhnte This compound is obtained using a protocol from the literature (K B. Kawthekar ci at South Africa Journal of Chernistiy 63, 195, 2009) starting from 15 g of (3S-1,2,3,4- tetrahydroisoquinolin-3-ylmethanol (91.9 mmol) in the presence of benzyl chloroformate and triethylamine dissolved in dichloromethane. After purification on silica gel (gradientpetroleum ether AcOEt), the title product is obtained in the form of an oil.?11 NMR: oe (300 MHz; DMSO-d6; 300K): 7.33 (m, 511, aromatic Hs, O-benzyl); 7.15 (s,4H, aromatic Hs, H tetrahydroisoquinofine); 5.13 (s, 2H, C112-Ph); 4.73 (d, 11-1, Htetrahydroisoquinoline); 4.47 (m, H, CH2OH); 4.36 (m, 1H, H tetrahydroisoquinoline);4.28 (d, TH, H tetrahydroisoquinoline); 3.39 (dd, 1H, CH2OH); 3.23 (dd, lH, CU2OH);2.93 (dd, I H, I-I tetrahydroisoquinoline); 2.86 (dd, IH, H tetrahydroisoquinoline). IR: v OH: 3416 ciii?; v C-H: 754 cm1

The synthetic route of 18881-17-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; LES LABORATOIRES SERVIER; VERNALIS (R&D) LIMITED; DAVIDSON, James, Edward, Paul; MURRAY, James, Brooke; CHEN, I-Jen; WALMSLEY, Claire; DODSWORTH, Mark; MEISSNER, Johannes, W., G.; BROUGH, Paul; FEJES, Imre; TATAI, Janos; NYERGES, Miklos; KOTSCHY, Andras; SZLAVIK, Zoltan; GENESTE, Olivier; LE TIRAN, Arnaud; LE DIGUARHER, Thierry; HENLIN, Jean-Michel; STARCK, Jerome-Benoit; GUILLOUZIC, Anne-Francoise; DE NANTEUIL, Guillaume; WO2015/11164; (2015); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

891785-28-7, 6-Bromoisoquinolin-3-amine is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

891785-28-7, [00344] 6-Bromo-3-fluoroisoquinoline: To a mixture of 6-bromoisoquinolin-3- amine (0.71 g, 3.18 mmol) in pyridine hydrofluoride (10 mL, 3.18 mmol) at -780C was carefully added sodium nitrite (0.26 g, 3.82 mmol). The reaction mixture was stirred at – 780C for 5 minutes. The reaction mixture was then warmed to room temperature over 40 minutes. The mixture was poured into an ice bath and the pH was adjusted to >9 with Na2CO3. The mixture was filtered to recover a yellow-purple solid. The solid was dissolved in EtOAc and water with stirring. The mixture was extracted with EtOAc (3 x 200 mL). The EtOAc was washed with brine, dried over Na2SO^ filtered and concentrated. The residue was taken up in DCM-MeOH and adsorbed onto silica gel. Purification by chromatography on silica gel eluting with EtOAc 0-7 % in hexanes provided the product (500 mg, 70 %). LCMS (API-ES) m/z: 226, 228 (M+H+).

The synthetic route of 891785-28-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; AMGEN INC.; WO2009/11880; (2009); A2;,
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.

As the paragraph descriping shows that 6624-49-3 is playing an increasingly important role.

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

34784-05-9, 6-Bromoisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

a) 6-( 1 -piperazinyl)isoquinoline6-Bromoisoquinoline (333 mg, 1.60 1 mmol) and palladium(II) acetate (17.97 mg,0.080 mmol) were placed in a microwave vial followed by piperazine (827 mg, 9.60 mmol), sodium tert-butoxide (215 mg, 2.24 1 mmol), and p-xylene (10 mL). The vial was capped andflushed with nitrogen and tris(1,1-dimethylethyl)phosphane (1M solution in toluene, 80 uL,0.080 mmol) was injected into the vial via syringe. The reaction was stirred and heated to 120C for 1 h. The xylene was evaporated under reduced pressure and the crude product wastaken up in dichloromethane and washed with water (2x). The organic layer was filtered toremove the catalyst, dried with sodium sulfate, and evaporated under reduced pressure toafford the title product (300 mg, 88%), which was used without further purification.MS(ES)+ mle 214.2 [M+H].

34784-05-9, 34784-05-9 6-Bromoisoquinoline 313681, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; GLAXOSMITHKLINE LLC; ADAMS, Nicholas, David; KIESOW, Terence, John; WIGGALL, Kenneth; WO2013/177253; (2013); A2;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

3336-43-4, 1-Chloroisoquinolin-4-ol is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Step 1 1-chloroisoquinolin-4-ol (0.5 g, 2.78 mmol), 1-bromo-2-methoxyethane (0.318 mL, 3.34 mmol), and potassium carbonate (0.539 g, 3.90 mmol) were added to a solution of DMF (10 mL) and heated to 45 C. for 1 hr. Ater 45 min, the temp was raised to 55 C. for 45 min. One half of an equivalent of 1-bromo-2-methoxyethane (0.318 mL, 3.34 mmol) was then added and then stirred at 40 C. for overnight. The reaction was diluted with water and extracted with EtOAc. The organic layer was washed with brine, collected, dried over MgSO4, filtered and evaporated to give the crude product. Crude material purified via silica gel chromatography (10-60% EtOAc:Hex) to give the desired product 1-chloro-4-(2-methoxyethoxy)isoquinoline (368 mg, 1.548 mmol, 55.6% yield) as an orange solid. 1H NMR (400 MHz, CHLOROFORM-d) delta 8.33-8.24 (m, 2H), 7.83 (s, 1H), 7.81-7.68 (m, 2H), 4.40-4.32 (m, 2H), 3.95-3.84 (m, 2H), 3.52 (s, 3H). MS: MS m/z 238.15 (M++1).

3336-43-4, As the paragraph descriping shows that 3336-43-4 is playing an increasingly important role.

Reference£º
Patent; Bristol-Myers Squibb Company; Hiebert, Sheldon; Rajamani, Ramkumar; Sun, Li-Qiang; Mull, Eric; Gillis, Eric P.; Bowsher, Michael S.; Zhao, Qian; Meanwell, Nicholas A.; Renduchintala, Kishore V.; Sarkunam, Kandhasamy; Nagalakshmi, Pulicharla; Babu, P. V. K. Suresh; Scola, Paul Michael; US2013/115190; (2013); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem