4-(6-Methylpyridin-3-yl)pyridin-2(1H)-one → tert-Butyl 9-methyl-7-(4-(6-methylpyridin-3-yl)-2-oxopyridin-1(2H)-yl)-3,4-dihydro-1H-pyrido[3,4-b]indole-2(9H)-carboxylate

HRID 930733Notes

Reaction equation

HRID 930733 reaction equation
[CH3:1][C:2]1[N:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][NH:11][C:10](=[O:14])[CH:9]=2)=[CH:4][CH:3]=1.Br[C:16]1[CH:24]=[C:23]2[C:19]([C:20]3[CH2:29][CH2:28][N:27]([C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:26][C:21]=3[N:22]2[CH3:25])=[CH:18][CH:17]=1>>[CH3:25][N:22]1[C:23]2[C:19](=[CH:18][CH:17]=[C:16]([N:11]3[CH:12]=[CH:13][C:8]([C:5]4[CH:6]=[N:7][C:2]([CH3:1])=[CH:3][CH:4]=4)=[CH:9][C:10]3=[O:14])[CH:24]=2)[C:20]2[CH2:29][CH2:28][N:27]([C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:26][C:21]1=2

Participants

3

Reactant 2

HCID 579502634-(6-Methylpyridin-3-yl)pyridin-2(1H)-oneHCID 57950468tert-butyl 7-bromo-9-methyl-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indole-2-carboxylate

Product 1

HCID 57950405tert-Butyl 9-methyl-7-(4-(6-methylpyridin-3-yl)-2-oxopyridin-1(2H)-yl)-3,4-dihydro-1H-pyrido[3,4-b]indole-2(9H)-carboxylateYield 55%

Procedure

4-(6-Methylpyridin-3-yl)pyridin-2(1H)-one (150 mg, 0.81 mmol) and tert-butyl 7-bromo-9-methyl-3,4-dihydro-1H-pyrido[3,4-b]indole-2(9H)-carboxylate (294 mg, 0.805 mmol) were reacted following the procedure of Example 30 (step g) to provide the title compound (208 mg, 55%) as a yellow/green solid: 1H NMR (300 MHz, CDCl3) δ 8.79 (d, J=8.2 Hz, 1H), 7.83 (dd, J=8.0, 2.3 Hz, 1H), 7.58-7.51 (m, 2H), 7.36 (s, 1H), 7.30 (1H, partially under solvent), 7.08 (dd, J=8.3, 1.8 Hz, 1H), 6.90 (d, J=1.7 Hz, 1H), 6.50 (dd, J=7.1, 2.0 Hz, 1H), 4.65 (br s, 2H), 3.76 (br m, 2H), 3.65 (s, 3H), 2.82 (br m, 2H), 2.64 (s, 3H), 1.52 (s, 9H).

Sources & evidence

ORD record
ord-90abc3a2bc5d4d52a38176102a30c9e2
Source dataset
uspto-grants-2016_03
Patent number
US09296743B2

Reaction notes

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