Hydrochloric Acid → HCID 68163486, compound

HRID 2400296Notes

Reaction equation

HRID 2400296 reaction equation
[CH3:1][CH:2]([C:5]1[N:6]([CH2:17][C:18]2[N:23]=[C:22]([C:24]([OH:26])=O)[CH:21]=[CH:20][CH:19]=2)[C:7]2[C:12]([CH:13]=1)=[CH:11][C:10]([O:14][CH3:15])=[C:9]([Cl:16])[CH:8]=2)[CH2:3][CH3:4].[CH3:27][S:28]([NH2:31])(=[O:30])=[O:29].Cl.C(N=C=NCCCN(C)C)C.Cl>ClCCl.CN(C)C1C=CN=CC=1>[CH3:1][CH:2]([C:5]1[N:6]([CH2:17][C:18]2[N:23]=[C:22]([C:24]([NH:31][S:28]([CH3:27])(=[O:30])=[O:29])=[O:26])[CH:21]=[CH:20][CH:19]=2)[C:7]2[C:12]([CH:13]=1)=[CH:11][C:10]([O:14][CH3:15])=[C:9]([Cl:16])[CH:8]=2)[CH2:3][CH3:4]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 72879MethanesulfonamideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 50907870HCID 50907870, compound

Product 1

HCID 68163486HCID 68163486, compoundYield 75.6%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of 6-[2-(butan-2-yl)-6-chloro-5-methoxyindol-1-ylmethyl]pyridine-2-carboxylic acid (68 mg) in dichloromethane (1.8 mL) were successively added methanesulfonamide (19 mg), 4-dimethylaminopyridine (49 mg), and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (77 mg). This mixture was stirred for 62 hours at room temperature. To the reaction mixture was added 1 mol/L hydrochloric acid, followed by extraction with dichloromethane. The organic layer was washed with 1 mol/L hydrochloric acid and saturated brine successively, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluting solvent: ethyl acetate-methanol) to obtain the title compound (62 mg). 1H-NMR (DMSO-d6) δ ppm: 0.79 (3H, t, J=7.3 Hz), 1.19 (3H, d, J=6.9 Hz), 1.45-1.75 (2H, m), 2.80-2.95 (1H, m), 3.34 (3H, s), 3.83 (3H, s), 5.58 (2H, s), 6.32 (1H, s), 6.65-6.80 (1H, m), 7.20 (1H, s), 7.53 (1H, s), 7.85-7.95 (2H, m), 11.41 (1H, br s). ESI-MS (m/z): 450, 452 (M+H)+

Workup

  1. extractionfollowed by extraction with dichloromethane
  2. washThe organic layer was washed with 1 mol/L hydrochloric acid and saturated brine successively
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (eluting solvent: ethyl acetate-methanol)

Sources & evidence

ORD record
ord-6b72d3014ae742af99beaab5bf7afaec
Source dataset
uspto-grants-2014_08
Patent number
US08796247B2

Reaction notes

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