Phenethylamine → benzyl-methyl-(2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-6-yl)-amine
Reaction equation
Cl[C:2]1[C:10]2[NH:9][C:8]3[CH2:11][CH2:12][N:13]([CH3:15])[CH2:14][C:7]=3[C:6]=2[CH:5]=[CH:4][CH:3]=1.CC(C)([O-])C.[Na+].C(P[C:27]1[CH:32]=[C:31](PC(C)(C)C)[CH:30]=[CH:29][C:28]=1[C:38]1C(C(C)C)=CC(C(C)C)=CC=1C(C)C)(C)(C)C.C([CH2:60][NH2:61])C1C=CC=CC=1>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.C1(C)C=CC=CC=1>[CH2:38]([N:61]([CH3:60])[C:2]1[C:10]2[NH:9][C:8]3[CH2:11][CH2:12][N:13]([CH3:15])[CH2:14][C:7]=3[C:6]=2[CH:5]=[CH:4][CH:3]=1)[C:28]1[CH:29]=[CH:30][CH:31]=[CH:32][CH:27]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Procedure
To a degassed mixture of 6-chloro-2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (100 mg, 0.5 mmol), sodium tert-butoxide (576 mg, 6.0 mmol), palladium acetate (22.4 mg, 0.1 mmol) and 2,4 di-tert-butylphosphino-2′,4′,6′-triisopropyl biphenyl (63.0 mg, 0.15 mmol) was added dry toluene (2 mL). After stirring for 5 min, benzylmethylamine (0.09 mL, 0.7 mmol) was added to the reaction mixture, which was stirred at 100° C. for 16 h. The reaction mixture was filtered and residue washed with EtOAc. The filtrate was concentrated under reduced pressure to afford crude material, which was purified by reverse phase HPLC to yield benzyl-methyl-(2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-6-yl)-amine (50 mg). 1H NMR (Freebase, CDCl3) δ (ppm): 7.80 (bs, 1H), 7.38 (m, 4H), 7.28 (m, 1H), 7.10 (s, 1H), 7.0 (t, 1H), 6.78 (d, 1H), 4.28 (s, 2H), 3.70 (s, 2H), 2.86 (m, 4H), 2.78 (s, 3H), 2.58 (s, 3H).
Workup
- stirringwas stirred at 100° C. for 16 h
- filtrationThe reaction mixture was filtered
- washresidue washed with EtOAc
- concentrationThe filtrate was concentrated under reduced pressure
- customto afford crude material, which
- customwas purified by reverse phase HPLC
Sources & evidence
- ORD record
- ord-98776dc874fc4123b5756011dcbf0135
- Source dataset
- uspto-grants-2016_09
- Patent number
- US09433626B2
Reaction notes
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