With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.204512-95-8,(S)-Tetrahydrofuran-3-amine hydrochloride,as a common compound, the synthetic route is as follows.
In a dried reaction flask,2-(3-chloro-4-cyanophenyl)-3-cyclopentyl-3,3a,4,5-tetrahydro-2H-pyrazolo[3,4-f]quinoline-7-carboxyli c acid (0.421g, 1.0mmol), (S)-tetrahydrofuran-3-amine hydrochloride (0.161g, 1.3mmol), DIEA (0.26mL, 1.5mmol), and HATU (0.418g, 1.1mmol) were added to a mixed solvent of DMF (4mL) and dichloromethane (8mL). The mixture was stirred at room temperature for 2hr and was concentrated under reduced pressure. Water was added to the residue. The mixture was filtered to produce a crude yellow solid, which was washed with methanol to produce a purified product (0.363g) in 74.1 % yield. Molecular formula: C27H28ClN5O2; mass spectrum (M+H): 490.2 1H-NMR(DMSO-d6, 400 MHz): delta 8.63 (1H, d), 8.49 (1H, d), 7.94 (1H, d), 7.71 (1H, d), 7.44 (1H, d), 7.22 (1H, dd), 5.02 (1H, dd), 4.62-4.41 (1H, m), 3.94-3.79 (2H, m), 3.78-3.57 (3H, m), 3.26-3.16 (1H, m), 3.14-2.99 (1H, m), 2.37-1.87 (5H, m), 1.79-1.65 (1H, m), 1.58-1.16 (7H, m).
The synthetic route of 204512-95-8 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; KBP Biosciences Co., Ltd.; HUANG, Zhenhua; WANG, Jinyuan; ZHANG, Dedong; EP2607363; (2013); A1;,
Tetrahydrofuran – Wikipedia
Tetrahydrofuran | (CH2)3CH2O – PubChem