With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.81868-12-4,2-(5-Bromo-1H-indol-3-yl)ethanamine hydrochloride,as a common compound, the synthetic route is as follows.
81868-12-4, A stirred suspension of 5-bromotryptamine hydrochloride (17.0 g, 61.7 mmol) in 250 mL of 0.1 N aqueous sulfuric acid was treated with isovaleraldehyde (10.0 mL, 92.6 mmol). The suspension was heated at 80 C. for 3 hr. The resulting solution was allowed to cool to ambient temperature then further cooled to 0 C. in an ice-water bath. The precipitated product was filtered, washed with MTBE (300 mL), dried overnight under high vacuum to give 6-bromo-1-isobutyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole hydrochloride 19.3 g (92%) as a white solid. 1H NMR (600 MHz, DMSO-d6) delta 11.41 (s, 1H), 9.92 (br. s., 1H), 9.46 (br. s., 1H), 7.66 (d, J=1.88 Hz, 1H), 7.33 (d, J=8.56 Hz, 1H), 7.21 (dd, J=1.88, 8.56 Hz, 1H), 4.66 (br. s., 1H), 3.54 (d, J=12.14 Hz, 1H), 3.27 (br. s., 1H), 2.86-3.01 (m, 2H), 2.01-2.09 (m, 1H), 1.91-1.99 (m, 1H), 1.83 (ddd, J=4.09, 10.23, 14.28 Hz, 1H), 1.03 (d, J=6.31 Hz, 3H), 0.97 (d, J=6.59 Hz, 3H).
81868-12-4 2-(5-Bromo-1H-indol-3-yl)ethanamine hydrochloride 13241175, aindole-building-block compound, is more and more widely used in various fields.
Reference£º
Patent; ALCON RESEARCH, LTD.; Ellis, David Archer; Mohapatra, Suchismita; Namil, Abdelmoula; Chen, Hwang-Hsing; Severns, Byron; Belanger, David B.; US2013/116219; (2013); A1;,
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