1,2-Dichloroethane → tert-butyl (5-((6-bromo-1-isopropyl-3-methyl-1H-indole-4-carboxamido)methyl)-6-methoxy-4-methylpyridin-2-yl)carbamate

HRID 62328Notes

Reaction equation

HRID 62328 reaction equation
[NH2:1][CH2:2][C:3]1[C:4]([CH3:19])=[CH:5][C:6]([NH:11][C:12](=[O:18])[O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[N:7][C:8]=1[O:9][CH3:10].[Br:20][C:21]1[CH:22]=[C:23]([C:34](O)=[O:35])[C:24]2[C:25]([CH3:33])=[CH:26][N:27]([CH:30]([CH3:32])[CH3:31])[C:28]=2[CH:29]=1.C1C=NC2N(O)N=NC=2C=1.C(Cl)CCl>CN(C=O)C.CCOC(C)=O>[Br:20][C:21]1[CH:22]=[C:23]([C:34]([NH:1][CH2:2][C:3]2[C:4]([CH3:19])=[CH:5][C:6]([NH:11][C:12](=[O:18])[O:13][C:14]([CH3:15])([CH3:16])[CH3:17])=[N:7][C:8]=2[O:9][CH3:10])=[O:35])[C:24]2[C:25]([CH3:33])=[CH:26][N:27]([CH:30]([CH3:31])[CH3:32])[C:28]=2[CH:29]=1

Participants

7

Reactant 4

HCID 111,2-DichloroethaneHCID 181649HOAtHCID 674686786-bromo-1-isopropyl-3-methyl-1H-indole-4-carboxylic acidHCID 71276137Tert-butyl (5-(aminomethyl)-6-methoxy-4-methylpyridin-2-yl)carbamate

Product 1

HCID 71274276tert-butyl (5-((6-bromo-1-isopropyl-3-methyl-1H-indole-4-carboxamido)methyl)-6-methoxy-4-methylpyridin-2-yl)carbamateYield 99.9%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a stirred solution of tert-butyl (5-(aminomethyl)-6-methoxy-4-methylpyridin-2-yl)carbamate (0.40 g, 1.496 mmol), 6-bromo-1-isopropyl-3-methyl-1H-indole-4-carboxylic acid (0.44 g, 1.486 mmol), and HOAt (0.21 g, 1.543 mmol) in DMF (25 mL) was added EDC free base (0.25 g, 1.610 mmol). The reaction was stirred at RT overnight then evaporated to dryness under vacuum. The remaining was purified by silica gel chromatography (Analogix, SF25-60 g, 0 to 30% EtOAc in hexanes) to give the product tert-butyl (5-((6-bromo-1-isopropyl-3-methyl-1H-indole-4-carboxamido)methyl)-6-methoxy-4-methylpyridin-2-yl)carbamate (0.81 g, 1.485 mmol, 99% yield) as a white solid. 1H NMR (400 MHz, DMSO-d6) δ=9.42 (s, 1H), 8.41 (t, J=4.8 Hz, 1H), 7.77 (d, J=1.5 Hz, 1H), 7.33 (s, 1H), 7.21 (s, 1H), 6.99 (d, J=1.8 Hz, 1H), 4.40 (d, J=5.1 Hz, 2H), 3.81 (s, 3H), 2.35 (s, 3H), 2.10 (d, J=1.0 Hz, 3H), 1.47 (s, 9H), 1.38 (d, J=6.6 Hz, 6H). MS(ES)+ m/e 545.2 [M+H]+.

Workup

  1. customthen evaporated to dryness under vacuum
  2. customThe remaining was purified by silica gel chromatography (Analogix

Sources & evidence

ORD record
ord-0bdf965691af48c99a194c1df2119965
Source dataset
uspto-grants-2016_09
Patent number
US09446041B2

Reaction notes

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