Hydrochloric Acid → 7H-indolo[2,1-a][2]benzazepine-10-carboxylic acid

HRID 1453378Notes

Reaction equation

HRID 1453378 reaction equation
[CH:1]1[C:11]2[C:10]3=[CH:12][C:13]4[CH:14]=[CH:15][C:16]([C:19]([O:21]C)=[O:20])=[CH:17][C:18]=4[N:9]3[CH2:8][CH:7]=[CH:6][C:5]=2[CH:4]=[CH:3][CH:2]=1.CNCC(N1CCOCC1)=O.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[OH-].[Na+].Cl>CN(C=O)C.O.C1COCC1.CO.C(N(CC)CC)C>[CH:1]1[C:11]2[C:10]3=[CH:12][C:13]4[CH:14]=[CH:15][C:16]([C:19]([OH:21])=[O:20])=[CH:17][C:18]=4[N:9]3[CH2:8][CH:7]=[CH:6][C:5]=2[CH:4]=[CH:3][CH:2]=1

Participants

10

Reactant 5

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 25176834-((Methylamino)acetyl)morpholineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 68832135methyl 7H-indolo[2,1-a][2]benzazepine-10-carboxylate

Product 1

HCID 666396797H-indolo[2,1-a][2]benzazepine-10-carboxylic acid

Reagents, catalysts & solvents 4

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolventHCID 21899815MeOH tetrahydrofuranSolvent

Procedure

To a stirred solution of methyl 7H-indolo[2,1-a][2]benzazepine-10-carboxylate, 13-cyclohexyl, 6-carboxylic acid, 3-methoxy (200 mg, 0.45 mmol), 2-(methylamino)-1-morpholinoethanone (86 mg, 0.54 mmol) and triethylamine (0.19 mL) in DMF (3 mL) was added HATU (205 mg, 0.54 mmol). The reaction mixture was stirred at rt for 2 h, diluted with H2O (˜12 mL) and the resulting solids were collected by filtration, washed with H2O and dried on the filter with aspirator vacuum for 1 h. The solids were dissolved into THF/MeOH (1:1, 4 mL) and 1M NaOH (aq.) (1.0 mL, 1.0 mmol). The reaction mixture was heated in a sealed tube with microwave irradiation at 85° C. for 20 min. The reaction was cooled, neutralized with 1M HCl (aq.) (1.0 mL, 1.0 mmol) and concentrated. The residue was slurried with H2O and the solids were collected by filtration, flushed with H2O, dried and purified by preparative HPLC (MeOH/H2O with an NH4OAc buffer) to yield 7H-indolo[2,1-a][2]benzazepine-10-carboxylic acid, 13-cyclohexyl-3-methoxy-6-[[methyl[2-(4-morpholinyl)-2-oxoethyl]amino]carbonyl]- (163 mg, 0.29 mmol, 63%) as a yellow solid and 7H-indolo[2,1-a][2]benzazepine-10-carboxylic acid, 6-[[(carboxymethyl)methylamino]carbonyl]-13-cyclohexyl-3-methoxy- (13 mg, 0.03 mmol, 6%) as a yellow solid. Data for 7H-indolo[2,1-a][2]benzazepine-10-carboxylic acid, 13-cyclohexyl-3-methoxy-6-[[methyl[2-(4-morpholinyl)-2-oxoethyl]amino]carbonyl]-: 1HNMR (300 MHz, CDCl3) δ 8.26 (br s. 1H), 7.85 (d, J=8.4 Hz, 1H), 7.74 (dd, J=1.1, 8.4 Hz, 1H), 7.48 (d, J=8.8 Hz, 1H), 7.03 (dd, J=2.7, 8.8 Hz, 1H), 7.00-6.92 (m, 1H), 6.89 (br s, 1H), 5.23-5.06 (m, 1H), 4.47-4.31 (m, 1H), 3.87 (s, 3H), 3.78-3.37 (m, 6H), 3.05-2.73 (m, 5H), 2.13-1.69 (m, 6H), 2.08 (s, 3H), 1.46-1.13 (m, 4H). LCMS: m/e 570 (M−H)−, ret time 1.38 min, column A, 2 minute gradient. Data for 7H-indolo[2,1-a][2]benzazepine-10-carboxylic acid, 6-[[(carboxymethyl)methylamino]carbonyl]-13-cyclohexyl-3-methoxy-. 1HNMR (300 MHz, DMSO-d6) δ 8.09 (s. 1H), 7.82 (d, J=9.5 Hz, 1H), 7.57 (d, J=8.4 Hz, 1H), 7.47 (d, J=9.5 Hz, 1H), 7.24-6.95 (m, 3H), 5.20-5.02 (m, 1H), 4.23-4.04 (m, 1H), 3.86 (s, 3H), 3.86-3.74 (m, 2H), 2.85 (s, 3H), 2.82-2.71 (m, 1H), 2.12-1.12 (m, 10H). LCMS: m/e 503 (M+H)+, ret time 2.83 min, column B, 3 minute gradient.

Workup

  1. filtrationthe resulting solids were collected by filtration
  2. washwashed with H2O
  3. customdried on the
  4. filtrationfilter with aspirator vacuum for 1 h
  5. temperatureThe reaction mixture was heated in a sealed tube with microwave irradiation at 85° C. for 20 min
  6. temperatureThe reaction was cooled
  7. concentrationconcentrated
  8. filtrationthe solids were collected by filtration
  9. customflushed with H2O
  10. customdried
  11. custompurified by preparative HPLC (MeOH/H2O with an NH4OAc buffer)

Sources & evidence

ORD record
ord-ae3ab259a1b9475088f9bd29069f0ff4
Source dataset
uspto-grants-2009_01
Patent number
US07473688B2

Reaction notes

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