Month: September 2020

57196-62-0, 6-Methoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride is a tetrahydroisoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

57196-62-0, a) 1 ,2,3 ,4-Tetrahvdro-isoquinolin-6-ol hydrobromide6-Methoxy-l,2,3,4-tetrahydro-isoquinoline hydrochloride, prepared as in WO 2004/26305, (18.9 g, 94 mmol) in 48% aqueous hydrobromic acid was heated at 100 C for 12 h and then cooled to 0 C. The solid was filtered off, washed with t-butyl methyl ether and dried. Yield= 17.1 g (79%) APCI-MS m/z: 150 [M+H+];1HNMR (400 MHz, DMSOd6) delta2.91 (t, 2H), 3.27 – 3.35 (m, 2H), 4.13 (t, 2H), 4.52 (s, IH), 6.59 (d, IH), 6.66 (dd, IH), 7.00 (d, IH), 9.07 (s, 2H) ppm.

57196-62-0 6-Methoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride 2920335, atetrahydroisoquinoline compound, is more and more widely used in various.

Reference£º
Patent; ASTRAZENECA AB; WO2006/65215; (2006); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

2-(tert-Butoxycarbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid, cas is 170097-67-3, it is a common heterocyclic compound, the tetrahydroisoquinoline compound, its synthesis route is as follows.

General procedure: To a solution of corresponding acids (1.0mmol) in DCM (6mL) was added EDCI (1.5mmol), HOBt (1.5mmol), Et3N (3.0mmol) and corresponding amines (1.0mmol). The mixture was stirred at room temperature for 4h. The reaction mixture was diluted with saturated sodium bicarbonate aqueous solution (10mL) and extracted with DCM (3¡Á10mL). The combined organic layers were then dried and concentrated. The residue was purified by silica gel chromatography (dichloromethane/methanol, v/v, 90:10) to give the desired product., 170097-67-3

With the rapid development of chemical substances, we look forward to future research findings about 170097-67-3

Reference£º
Article; Shao, Jingwei; Zhu, Kongkai; Du, Daohai; Zhang, Yuanyuan; Tao, Hongrui; Chen, Zhifeng; Jiang, Hualiang; Chen, Kaixian; Luo, Cheng; Duan, Wenhu; European Journal of Medicinal Chemistry; vol. 164; (2019); p. 317 – 333;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.42923-79-5,7-Nitro-1,2,3,4-tetrahydroisoquinoline,as a common compound, the synthetic route is as follows.

(5-1) The raw material 7-nitro-1,2,3,4-tetrahydroisoquinoline was prepared according to Heterocyclic Chemistry, 22 , 329 (1985). 7-Nitro-1,2,3,4-tetrahydroisoquinoline (5.78g) was dissolved in ethanol (400ml), triethylamine (7.8ml) and ethyl bromoacetate (4.5g) were added, and the mixture was heated and refluxed for 1 hour. Most of the solvent was distilled off under reduced pressure, the concentrated residue was extracted with ethyl acetate and the extracted solution was dried with anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure and the crude product obtained was purified by silica gel column chromatography using a solvent mixture, ethyl acetate : n-hexane = 1: 3, as a developer. The compound obtained was treated with a hydrochloric acid/dioxane solution to obtain ethyl 7-nitro-1,2,3,4-tetrahydro-isoquinoline-2-acetate hydrochloride (4.2g).

42923-79-5, As the paragraph descriping shows that 42923-79-5 is playing an increasingly important role.

Reference£º
Patent; MITSUI TOATSU CHEMICALS, Inc.; EP760364; (1997); A2;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.226942-29-6,6-Bromo-1,2,3,4-tetrahydroisoquinoline,as a common compound, the synthetic route is as follows.,226942-29-6

Boc2O (3.52 g, 16.14 mmol) was added to a solution of 6-bromo-1,2,3,4-tetrahydroisoquinoline (3.26 g, 15.37 mmol) in THF (45 mL) at room temperature, and the mixture was stirred at room temperature for 15 hr. The reaction mixture was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (solvent gradient; 0?8% ethyl acetate/hexane) to give tert-butyl 6-bromo-3,4-dihydroisoquinoline-2(1H)-carboxylate (5.05 g, 16.18 mmol, quant.) as a colorless oil. 1H NMR (300 MHz, CDCl3):delta 1.49(9H,s), 2.80(2H,t,J=5.9 Hz), 3.62(2H,t,J=5.9 Hz), 4.51(2H,s), 6.97(1H,d,J=8.7 Hz), 7.28-7.32(2H,m).

As the paragraph descriping shows that 226942-29-6 is playing an increasingly important role.

Reference£º
Patent; Takeda Pharmaceutical Company Limited; YAMAMOTO, Satoshi; SHIRAI, Junya; ODA, Tsuneo; IMADA, Takashi; KONO, Mitsunori; SATO, Ayumu; TOMATA, Yoshihide; OCHIDA, Atsuko; ISHII, Naoki; SASAKI, Yusuke; FUKASE, Yoshiyuki; YUKAWA, Tomoya; FUKUMOTO, Shoji; (200 pag.)EP3192791; (2017); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Methyl 1,2,3,4-tetrahydroisoquinoline-3-carboxylate hydrochloride, cas is 57060-88-5, it is a common heterocyclic compound, the tetrahydroisoquinoline compound, its synthesis route is as follows.

Step A N-(3,5-Dichlorobenzenesulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid, methyl ester To a mixture of 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid, methyl ester hydrochloride (200 mg, 0.878 mmol) in a 1:1 mixture of CH2Cl2 and THF (2.5 mL each) was added dropwise DIPEA (0.88 mmol, 113 mg) followed by 3,5-dichlorobenzenesulfonyl chloride (0.922 mmol, 227 mg), a second equivalent of DIPEA and 4-DMAP (0.176 mmol, 22 mg). The reaction mixture was stirred at rt overnight when TLC (4:1 hexane:ethyl acetate) indicated disappearance of all starting material. The volatiles were removed in vacuo and the residue was purified by flash column chromatography on silica gel eluted with a gradient of hexane and ethyl acetate to yield N-(3,5-dichlorobenzenesulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid, methyl ester (282 mg, 80%) as a white foam, homogeneous by TLC (Rf=0.55, 4:1 hexane:ethyl acetate); 500 MHz 1H NMR (CDCl3): delta3.24 (m, 2H), 3.54 (s, 3H), 4.47 (d, J=15 Hz, 1H), 4.74 (d, J=15 Hz, 1H), 5.01 (dd, J=3.7, 6 Hz, 1H), 7.08-7.27 (m, 4H), 7.56 (t, J=1.8 Hz, 1H), 7.73 (d, J=1.9 Hz, 2H)., 57060-88-5

With the rapid development of chemical substances, we look forward to future research findings about 57060-88-5

Reference£º
Patent; Lin, Linus S.; Shah, Shrenik K.; Chang, Linda L.; Hagmann, William K.; Mumford, Richard A.; US2002/193399; (2002); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

8-Chloro-1,2,3,4-tetrahydroisoquinoline, cas is 75416-50-1, it is a common heterocyclic compound, the tetrahydroisoquinoline compound, its synthesis route is as follows.

General procedure: A mixture of alkylating agent (1equiv), appropriate amine (1.1equiv) K2CO3 (1.1equiv), and KI (catalytic) in DME or CH3CN (50mL) was placed in a round bottomed flask with a stirrer was heated to reflux on a heating plate for 24-28 h. The reaction was monitored by TLC for product formation. After reaction was complete, the resulting crude mixture was directly purified on silica gel by flash chromatography (gradient up to 70% EtOAc in hexanes) to afford the final compounds. The free base where necessary, was converted to the HCl or HBr salt and crystallized out of a mixture of MeOH-Et2O., 75416-50-1

With the rapid development of chemical substances, we look forward to future research findings about 75416-50-1

Reference£º
Article; Ofori, Edward; Zhu, Xue Y.; Etukala, Jagan R.; Bricker, Barbara A.; Ablordeppey, Seth Y.; Bioorganic and Medicinal Chemistry; vol. 24; 22; (2016); p. 5730 – 5740;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

151838-62-9, 2-(tert-Butoxycarbonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid is a tetrahydroisoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,151838-62-9

Step 1 3(R)-Carboethoxy-1,2,3,4-tetrahydroisoquinoline The title compound was obtained from N-Boc-D-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (Bachem) using standard amino acid chemical procedures.

As the paragraph descriping shows that 151838-62-9 is playing an increasingly important role.

Reference£º
Patent; Merck & Co., Inc.; US5977134; (1999); A;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

1-Phenyl-1,2,3,4-tetrahydroisoquinoline, cas is 22990-19-8, it is a common heterocyclic compound, the tetrahydroisoquinoline compound, its synthesis route is as follows.

1.98 g (2.0 mmol) of PS carbodiimide resin were added to a solution of 209 mg (1.0 mmol) of 1-phenyl-1,2,3,4-tetrahydroisoquinoline and 275 mg (1.0 mmol) of 4-oxo-4-(3-(trifluoromethyl)benzylamino)butyric acid (intermediate VVV01) in a mixture of DCM and DMF (82 ml, 40:1 vv) and the mixture was shaken for 16 h at RT. Then the resin was filtered off and it was washed with DCM and MeOH. The filtrate was concentrated to small volume under vacuum. Column chromatography (DCM/EtOH 40:1) of the residue produced 287 mg (0.6 mmol, 62%) of 4-oxo-4-(1-phenyl-3,4-dihydroisoquinolin-2(1H)-yl)-N-(3-(trifluoromethyl)benzyl)butyric acid amide. MS: m/z 467.2 [M+H]+., 22990-19-8

With the rapid development of chemical substances, we look forward to future research findings about 22990-19-8

Reference£º
Patent; GRUNENTHAL GMBH; US2010/152234; (2010); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

5-Bromo-1,2,3,4-tetrahydroisoquinoline, cas is 81237-69-6, it is a common heterocyclic compound, the tetrahydroisoquinoline compound, its synthesis route is as follows.

To a solution of 5-bromo-l,2,3,4-tetrahydroisoquinoline (4.24 g, 20 mmol) and di-tert- butyl pyrocarbonate (5.2 g, 24 mmol) in THF (45 mL) was added TEA (4.0 g, 40 mmol) dropwise. The resulting mixture was stirred for 15 hrs at rt, then poured into water (50 mL) and extracted with EA (75 mL) twice. The organic layers were combined, then washed with water and brine, dried over anhydrous Na2S04 and concentrated in vacuo. The residue was purified by column (eluting with PE/EA=5/1, v:v) to provide tert-butyl 5-bromo-3,4-dihydro-lH- isoquinoline-2-carboxylate (5 g) as a white solid., 81237-69-6

With the rapid development of chemical substances, we look forward to future research findings about 81237-69-6

Reference£º
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; CHENG, Zhanling; WANG, Jianhua; WANG, Min; YANG, Song; (81 pag.)WO2018/83136; (2018); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

6-Bromo-1,2,3,4-tetrahydroisoquinoline, cas is 226942-29-6, it is a common heterocyclic compound, the tetrahydroisoquinoline compound, its synthesis route is as follows.

General procedure: 1007511 To a mixture of Compound 61F (250 mg, 0.5 mmol) and Cs2CO3 (326 mg, 1 mmol) in DMF (20 mL) was added Mel (142 mg, 1 mmol) and stirred at 60 C for 3 hours. The reaction mixture was concentrated under reduced pressure. The residue was purified with flash column chromatography on silica gel (ethyl acetate in petroleum ether, 50% v/v) to afford Compound 63A. LC-MS (ESI) m/z: 518 [M+H]t, 226942-29-6

With the rapid development of chemical substances, we look forward to future research findings about 226942-29-6

Reference£º
Patent; BIOMARIN PHARMACEUTICAL INC.; WANG, Bing; CHAO, Qi; (737 pag.)WO2019/133770; (2019); A2;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem