66491-03-0,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.66491-03-0,7-Amino-3,4-dihydroisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.
(a) 7-Bromo-3,4-dihydro-1 (2H)-isoquinolinone; To a solution of 7-amino-3,4-dihydro-1 (2/-/)-isoquinolinone, (for a synthesis see Girard, Yves; Atkinson, Joseph G.; Belanger, Patrice C; Fuentes, Jose J.; Rokach, Joshua; Rooney, C. Stanley; Remy, David C; Hunt, Cecilia A J.Org.Chem. (1983), 48(19), 3220) (0.773 g, 4.772 mmol) in acetonitrile (10ml) at O0C was added 48% aqueous hydrobromic acid (10 ml, precooled to O0C). The mixture was stirred at O0C for 0.5h before addition of a solution of sodium nitrite (0.379g, 5.49 mmol) in water (2ml) over 0.4h. The reaction was then stirred at O0C for 0.5h and then copper(l) bromide (0.822g, 5.726 mmol) was added portionwise over 10 min. The reaction mixture was then warmed to room temperature, stirred at room temperature for 0.5h and then at 7O0C for 1 h. The reaction mixture was then cooled to O0C, water (60ml) was added and the mixture stirred at O0C for 1 h before filtering and drying in vacuo. The residue was dissolved in 10% methanol/dichloromethane, dried with magnesium sulphate and evaporated to give the desired product (0.679g, 63%). MS (+ve ion electrospray) m/z 227 (MH+).
The synthetic route of 66491-03-0 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; GLAXO GROUP LIMITED; WO2007/115947; (2007); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem