In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 405173-97-9, name is 2-(2-Chloroethyl)-1H-benzo[d]imidazole belongs to imidazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 405173-97-9
General procedure: 2-(2-Aminoethyl)-N-[(3-fluoropyridin-2-yl)methyl]-1 ,3-thiazole-4-carboxamide dihydrochloride (103) (2.0 g, 3.96 mmol) was added to a solution of 2-(2-chloroethyl)-1 H-1 ,3-benzodiazole hydrochbride (1.12 g, 5.15 mmol) and DIPEA (10.6 ml, 59.45 mmol) in DMF (60 ml). The reaction mixture was allowed to stir at 3GC for 6 d (reaction was monitored by LCMS). The mixture was concentrated in vacuo and the residue was neutralised using sat. NaHC03 (aq). The aqueous layer was extracted using 4: 1 CHCb / 1 PA (4 x 100 ml) and the combined organic layers were dried (MgS04), filtered and evaporated in vacuo. The crude residue was purified by flash column chromatography (kp-NH, eluting with a gradient of 60-100% EtOAc / heptane followed by 0-20% MeOH / EtOAc) follow by neutral reverse-phase column chromatography (gradient elution 0-60% MeCN / water) to give the title compound (0.173 g, 10%) as a yellow oil. 1 H-NMR (Methanol-d4, 500 MHz): d[ppm]= 8.31 (d, J = 4.6 Hz, 1 H), 8.02 (s, 1 H), 7.57 (t, J = 9.1 Hz, 1 H), 7.45 – 7.40 (m, 2H), 7.36 (dd, J = 8.6, 4.3 Hz, 1 H), 7.17 (dd, J = 6.0, 3.2 Hz, 2H), 4.68 (s, 2H), 3.26 (d, J = 6.8 Hz, 2H), 3.15 – 3.07 (m, 6H) HPLCMS (Method D): [m/z]: 425.1 [M+H]+In a similar fashion to general procedure 7, -(pyridin-2-ylmethyl)-4H,5H,6H,7H-thieno[2,3-c]pyridine-3- carboxamide (450) (65 mg, 0.24 mmol), K2C03 (49 mg, 0.36 mmol) and 2-(2-chloroethyl)-1 H- benzimidazole (47 mg, 0.26 mmol) in acetone (3 ml) at room temperature for 24 h, followed by the addition of DMF (5 ml), Nal (39 mg, 0.26 mmol), DIPEA (0.16 ml, 0.95 mmol) and 2-(2-chloroethyl)-1 H- benzimidazole (94 mg, 0.52 mmol) at room temperature for 72 h, gave the title compound (9 mg, 9%) as an orange solid after purification by basic prep-HPLC. 1 H-NMR (DMSO-d6, 500 MHz): d[ppm]= 12.17 (s, 1 H), 8.75 (t, J = 6.0 Hz, 1 H), 8.50 (d, J = 4.2 Hz, 1 H), 7.94 (s, 1 H), 7.75 (td, J = 7.7, 1.8 Hz, 1 H), 7.46 (s, 2H), 7.31 (d, J = 7.8 Hz, 1 H), 7.28- 7.23 (m, 1 H), 7.10 (dd, J = 6.0, 3.1 Hz, 2H), 4.48 (d, J = 6.0 Hz, 2H), 3.71 (s, 2H), 3.05 (t, J = 7.2 Hz, 2H), 2.96 (t, J = 7.2 Hz, 2H), 2.82 (d, J = 5.3 Hz, 2H), 2.75 (t, J = 5.7 Hz, 2H) HPLCMS (Method B): [m/z]: 418.2 [M+H]+
The synthetic route of 405173-97-9 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; VIFOR (INTERNATIONAL) AG; DUeRRENBERGER, Franz; BUHR, Wilm; BURCKHARDT, Susanna; BURGERT, Michael; KALOGERAKIS, Aris; REIM, Stefan; MANOLOVA, Vania; BOYCE, Susan; YARNOLD, Christopher John; PENA, Paula; SHEPHERD, Jon; LECCI, Cristina; JARJES-PIKE, Richard; SCOTT, John; (416 pag.)WO2017/68089; (2017); A2;,
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