Day: August 20, 2020

486-73-7, Isoquinoline-1-carboxylic acid is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A. 1,2,3,4-Tetrahydro-1-isoquinolinecarboxylic acid A solution of 1-isoquinolinecarboxylic acid (1.67 g) in glacial acetic acid (25 ml,) was hydrogenated at 60 p.s.i. over PtO2 (270 mg). When the reaction was complete, the mixture was filtered through diatomaceous earth (Celite), washing the solid pad with MeOH, and the filtrate was concentrated to dryness. The resultant white solid was triturated with cold water and filtered to provide the title compound (775 mg).

486-73-7 Isoquinoline-1-carboxylic acid 68092, aisoquinoline compound, is more and more widely used in various.

Reference£º
Patent; ProScript, Inc.; US5780454; (1998); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

23687-26-5, 6-Aminoisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Synthetic Example 84b 6-(4-Chlorobenzenesulfonylamino)-1-cyanoisoquinoline The compound obtained using 6-aminoisoquinoline (0.5 g, Synthesis, 733 (1975)) and 4-chlorobenzenesulfonyl chloride (0.88 g) in the same method as in Synthetic Example 1b was dissolved in chloroform (150 ml). Under ice-cooling, m-chloroperbenzoicacid (0.9 g) was added theterto, followed by stirring at room temperature overnight. The solvent was evaporated, and the resulting crystals were washed with diethyl ether, collected by filtration and dried, to give 6-(4-chlorobenzenesulfonylamino)isoquinoline-N-oxide (1.072 g).

The synthetic route of 23687-26-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Eisai Co., Ltd.; EP1258252; (2002); 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.23687-26-5,6-Aminoisoquinoline,as a common compound, the synthetic route is as follows.

Compound 7A (10.9 g, 25 mmol) at room temperature6-aminoisoquinoline (4.32 g, 30 mmol)And EDCI (6.68g, 35mmol)Add pyridine (100ml), nitrogen protection,Then DMAP (4-dimethylaminopyridine) (4.2 g, 35 mmol) was added,Reaction overnight,The reaction was monitored by TLC (DCM:MA=20:1) until the disappearance of starting compound 7A, evaporated to dryness under reduced pressure, 3 mol of acetic acid aqueous solution was adjusted to pH=4-5, extracted with DCM (100 ml*4), and combined to obtain compound 8. (11.02 g), yield 78percent; LC-MS (M+1) 566, purity: 97.4percent.

As the paragraph descriping shows that 23687-26-5 is playing an increasingly important role.

Reference£º
Patent; Shanghai Taoqin Bio-pharmaceutical Technology Co., Ltd.; Li Yu; (18 pag.)CN107434780; (2017); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

105627-79-0, Isoquinoline-5-sulfonyl chloride hydrochloride is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Reference Preparation Example Homopiperazine (3.413 g) was dissolved in tetrahydrofuran (57 ml) with stirring. After cooling the solution to -5 C, 5-isoquinolinesulfonyl chloride hydrochloride (3.00 g) was added while maintaining the intemal temperature at 10 C or less. The mixture was stirred at 5 C or less for four hours. The reaction mixture was allowed to stand to reach room temperature and filtered to remove insoluble matter. The filtrate was concentrated under reduced pressure, followed by the addition of ethyl acetate (57 ml), water (17 ml), and 3 N hydrochloric acid aqueous solution (6.4 ml). The mixture was separated into layers to obtain a water layer. After washing the water layer with ethyl acetate (7 ml), water (6 ml), ethyl acetate (57 ml), and 6 N sodium hydroxide aqueous solution (3 ml) were added to separate the mixture into layers and obtain an organic layer. The organic layer was concentrated under reduced pressure and the residue was dried under reduced pressure to obtain fasudil (1.36 g). The yield was 41%. The fasudil is processed by the method described in JP-A-9-71582 to obtain fasudil hydrochloride. Fasudil can also be obtained in the same manner using the solvents listed below instead of tetrahydrofuran used in the Reference Preparation Example at yields described in the parentheses. Acetone (22%), acetonitrile (30%), 1,2-dimethoxyethane (31%), 2-butanone (24%), anisole (34%), isopropyl ether (10%), ethyl acetate (38%), toluene (18%), etc. Concentration of the filtrate was unnecessary when anisole, isopropyl ether, ethyl acetate, and toluene were used as the solvent.

The synthetic route of 105627-79-0 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Asahi Kasei Pharma Corporation; EP1726306; (2006); 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.39989-39-4,7-Methoxyisoquinoline,as a common compound, the synthetic route is as follows.

TMPMgCl¡¤LiCl (1.0 M in THF/toluene; 5.65 mL, 5.65 mmol) was added dropwise at roomtemperature to a solution of 7-methoxyisoquinoline (600 mg, 3.77 mmol) in dry THF (11 mL).After 4 h the reaction mixture was cooled to 0C, a solution of iodine (1.43 g, 5.65 mmol) indry THF (6.65 mL) was added dropwise and the resulting mixture stirred while warming to room temperature over 1 h. Sat. aq. NH4Cl (6 mL) and sat. aq. Na2S2O3 (6 mL) were addedand the organic materials extracted using DCM (3 x 50 mL). The combined organic layerswere dried over Na2SO4 and concentrated in vacuo. The resulting crude product was purifiedby flash column chromatography (EtOAc/hexanes 1:9) to give 1-iodo-7-methoxyisoquinoline(S1) (469 mg, 1.64 mmol, 44%) as a yellowish solid.

The synthetic route of 39989-39-4 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Kraus, Yvonne; Glas, Carina; Melzer, Benedikt; Gao, Li; Heise, Constanze; Preusse, Monique; Ahlfeld, Julia; Bracher, Franz; Thorn-Seshold, Oliver; European Journal of Medicinal Chemistry; vol. 186; (2020);,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.3336-43-4,1-Chloroisoquinolin-4-ol,as a common compound, the synthetic route is as follows.

To a solution of l-chloro-4-hydroxyisoquinoline (1.Og, 5.6 mmol) in DMF (16mL), was added 6-chloronicotmonitrile (0.55g, 4.0mmol) and K2CO3 (1.65g, 11.9mmol). The reaction mixture was heated at 7O0C for 6.5h. Solvent was removed in vacuo and residue partitioned between EtOAc (10OmL), THF (10OmL) and water (6OmL). The organic phase was washed with water (2x60mL), IM NaOH (2x40mL), brine (4OmL) and dried (MgSO4). Solvent was removed in vacuo to give the title compound: RT = 3.66min; m/z (ES+) = 282.0 [M + H]+.

3336-43-4 1-Chloroisoquinolin-4-ol 4281882, aisoquinoline compound, is more and more widely used in various.

Reference£º
Patent; PROSIDION LIMITED; WO2008/142454; (2008); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1075-11-2, 6-Fluoroisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: Dimethylsulfamoyl chloride (34; 0.144 mL, 1.34 mmol) was added to a solution of isoquinoline (5; 157 mg, 1.22 mmol) and 1H-indol-7-yl acetate (33; 213 mg, 1.22 mmol) in toluene (4 mL) at r.t. The mixture was concentrated to a thick but stirrable paste (1.5 mL), which was stirred at 50 C for 3 h. TLC and LCMS showed reaction was largely complete by this time. The mixture was diluted with EtOAc (40 mL), washed with H2O (40 mL) and sat. brine (20 mL), dried (Na2SO4), filtered and evaporated to dryness. The residue was purified by flash silica gel chromatography (loading in CH2Cl2) (eluent: gradient 20 to 50% EtOAc in heptane). Fractions containing the desired product were evaporated to afford the title compound 37a (208 mg, 42%) as a white solid

As the paragraph descriping shows that 1075-11-2 is playing an increasingly important role.

Reference£º
Article; Pearson, Stuart E.; Fillery, Shaun M.; Goldberg, Kristin; Demeritt, Julie E.; Eden, Jonathan; Finlayson, Jonathan; Patel, Anil; Synthesis; vol. 50; 24; (2018); p. 4963 – 4981;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

491-30-5, 1-Hydroxyisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A mixture of 2.90 g, 19.07mMol of isocarbostyril and 14.40 g, 33.68mMol of phosphorus pentabromide were allowed to melt together at 140 C. The melt turned into a red liquid and after about 10 minutes the reaction mixture solidified and was cooled. The reaction mixture was crushed up and dumped into ice water. The resulting solid was filtered and air-dried. wt. 5.50 g, 96% yield, mp.=94-96. Rf=0.66 in 40% ethyl acetate in hexanes.

491-30-5 1-Hydroxyisoquinoline 10284, aisoquinoline compound, is more and more widely used in various.

Reference£º
Patent; BAYER CORPORATION; EP1228063; (2009); B1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.23687-26-5,6-Aminoisoquinoline,as a common compound, the synthetic route is as follows.

A mixture of tert-butyl (1S,2R)-2-(5-bromo-6-cyanopyridin-3¡¤¡¤ylanilino)cyclohexylcarbamate (90 mg, 0,227 mmol), 6-aminoisoquinoline (40 mg, 0.277 mmol), NaOPh trihydrate (50 mg, 0.294 mmol), xantphos (30 rng, 0.051 mmol) and Pd2dba3 (18 mg, 0.019 mmol) in dioxane (3 mL) was degassed with Ar, then was stirred at 110 ¡ãC for 20 h. The mixture was concentrakd in vacuo. The residue was then dissolved in trifluoroacetic acid (5 mL). The solution was allowed to stand for 30 min. Excess of trifluoroacetie acid vvas removed in vacuo. The residue was purified by HPLC to give 5-((1R,2S)-2-aminocyclohexylamino)-3-(isoquinolin-6-ylamino)picolinonitrile (85 mg).

As the paragraph descriping shows that 23687-26-5 is playing an increasingly important role.

Reference£º
Patent; PORTOLA PHARMACEUTICALS, INC.; SONG, Yonghong; XU, Qing; SRAN, Arvinder; BAUER, Shawn M.; JIA, Zhaozhong J.; KANE, Brian; PANDEY, Anjali; WO2013/192046; (2013); 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.23687-26-5,6-Aminoisoquinoline,as a common compound, the synthetic route is as follows.

K3PO4 (0.544 g, 2.565 mmol), Pd2(dba)3 (0.049 g, 0.0534 mmol) and Xantphos (0.052 g, 0.0891 mmol) were added to a solution of intermediate 13 (0.168 g, 0.891 mmol) in THF (6 mL) while nitrogen was bubbling. After 10 min, isoquinolin-6-amine (0.128 g, 0.891 mmol) was added and the mixture was stirred at rt for 10 min. Then, the mixture was heated at 100 ¡ãC for 16 h. More Pd2(dba)3 (0.049 g, 0.0534 mmol) and Xantphos (0.052 g, 0.0891 mmol) were added under nitrogen flow, and the mixture was heated again at 100 ¡ãC overnight. Pd2(dba)3 (0.049 g, 0.0534 mmol) and Xantphos (0.052 g, 0.0891 mmol) were added were added under nitrogen flow, and the mixture was heated again at 100 ¡ãC for 6 h. The mixture was washed with sat. NaHC03 and extracted with EtOAc. The org layers were dried over MgS04, filtered and the solvent was evaporated in vacuo. The crude product was purified by flash column chromatography (silica; EtOAc in DCM 0/100 to 45/55). The desired fractions were collected and concentrated in vacuo. The product was purified by preparative HPLC (from 75percent [25 mM (0216) NH4HC03] – 25percent [ACN: MeOH 1 : 1] to 0percent [25 mM NH4HC03] – 100percent [ACN: MeOH 1 : 1]). The desired fractions were collected and the solvent was evaporated. The residue was dissolved in DCM and HC1 (5 M in 2-propanol) was added and the resulting mixture was concentrated in vacuo. The residue was triturated with Et20 and filtered to yield compound 7 as an orange solid (0.066 g, 22percent yield). FontWeight=”Bold” FontSize=”10″ H NMR (300 MHz, DMSO-de) delta ppm 1.83 – 2.05 (m, 2 H) 3.17 (br t, J=6.8 Hz, 2 H) 4.58 (dt, J=47.4, 5.8 Hz, 2 H) 5.83 (br s, 1 H) 7.00 (d, J=8.8 Hz, 1 H) 7.12 (dd, J=8.7, 2.7 Hz, 1 H) 7.77 (dd, J=9.2, 1.2 Hz, 1 H) 7.81 (d, J=2.5 Hz, 1 H) 7.99 (d, J=6.9 Hz, 1 H) 8.20 (d, J=9.1 Hz, 1 H) 8.28 (d, J=6.6 Hz, 1 H) 8.42 (s, 1 H) 9.30 (s, 1 H) 10.08 (s, 1 H)

As the paragraph descriping shows that 23687-26-5 is playing an increasingly important role.

Reference£º
Patent; JANSSEN PHARMACEUTICA NV; ANDRES-GIL, Jose, Ignacio; BORMANS, Guy, Maurits, R.; DECLERCQ, Lieven, Denis, Herwig; FIERENS, Katleen; LEENAERTS, Joseph, Elisabeth; MOECHARS, Diederik, Willem, Elisabeth; ROMBOUTS, Frederik, Jan, Rita; KOLB, Hartmuth; ZHANG, Wei; (67 pag.)WO2018/15307; (2018); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem