Hydrochloric Acid → HCID 67040972, compound

HRID 605241Notes

Reaction equation

HRID 605241 reaction equation
C1C2C(COC(=O)[NH:17][C:18]3[CH:23]=[CH:22][C:21]([S:24][C:25]4[CH:30]=[CH:29][C:28]([C:31](=[O:40])[NH:32][C:33]5[CH:34]=[N:35][CH:36]=[C:37]([Br:39])[CH:38]=5)=[CH:27][C:26]=4[NH:41][C:42]4[C:43]5[CH:51]=[CH:50][C:49]([CH:52]([CH3:54])[CH3:53])=[N:48][C:44]=5[N:45]=[CH:46][N:47]=4)=[CH:20][CH:19]=3)C3C(=CC=CC=3)C=2C=CC=1.O.[OH-].[Li+].Cl>O1CCOCC1.O.C(OCC)(=O)C>[NH2:17][C:18]1[CH:23]=[CH:22][C:21]([S:24][C:25]2[CH:30]=[CH:29][C:28]([C:31]([NH:32][C:33]3[CH:34]=[N:35][CH:36]=[C:37]([Br:39])[CH:38]=3)=[O:40])=[CH:27][C:26]=2[NH:41][C:42]2[C:43]3[CH:51]=[CH:50][C:49]([CH:52]([CH3:54])[CH3:53])=[N:48][C:44]=3[N:45]=[CH:46][N:47]=2)=[CH:20][CH:19]=1

Participants

7

Reactant 3

HCID 313Hydrochloric AcidHCID 168937Lithium hydroxide, monohydrateHCID 67040449HCID 67040449, compound

Product 1

HCID 67040972HCID 67040972, compoundYield 51.7%

Reagents, catalysts & solvents 3

HCID 962WaterSolvent2×HCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
70 °C

Procedure

A solution of the product of Example 231E (96 mg, 0.1187 mmol) in 1,4-dioxane (2 mL) was treated with a solution of lithium hydroxide monohydrate (10.0 mg, 0.2374 mmol) in water (1 mL) at ambient temperature, then heated at 70° C. for 30 minutes. The reaction was cooled to room temperature, diluted with ethyl acetate (50 mL) and water (30 mL), adjusted the aqueous pH to 5 with 1N aqueous hydrochloric acid, and separated the layers. The organic phase was washed with water (2×25 mL) and brine (25 mL), dried over anhydrous sodium sulfate, filtered, and concentrated by rotary evaporation in vacuo. Purification of the residue by silica gel chromatography eluting with 5% methanol/methylene chloride afforded the title compound as a light yellow solid (36 mg, 2%). 1H NMR (300 MHz, DMSO-d6) δ ppm: 1.34 (d, J=6.62 Hz, 6 H) 3.12-3.30 (m, 1 H) 5.61 (s, 2 H) 6.64 (d, J=8.09 Hz, 2 H) 6.90 (dd, J=6.43, 1.29 Hz, 1 H) 7.15 (d, J=8.46 Hz, 2 H) 7.65 (dd, J=8.09, 1.84 Hz, 1 H) 7.81 (dd, J=7.91, 2.39 Hz, 1 H) 7.97 (s, 1 H) 8.43 (d, J=1.84 Hz, 1 H) 8.48-8.51 (m, 2 H) 8.59 (s, 1 H) 8.88 (d, J=1.84 Hz, 1 H) 10.18 (s, 1 H) 10.51 (s, 1 H); MS (ESI+) m/z 586/588 (M+H)+.

Workup

  1. temperatureThe reaction was cooled to room temperature
  2. customseparated the layers
  3. washThe organic phase was washed with water (2×25 mL) and brine (25 mL)
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated by rotary evaporation in vacuo
  7. customPurification of the residue by silica gel chromatography
  8. washeluting with 5% methanol/methylene chloride

Sources & evidence

ORD record
ord-bec5a773a582416ead533b2a8d759990
Source dataset
uspto-grants-2011_03
Patent number
US07910595B2

Reaction notes

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