Hydrochloric Acid → HCID 57920113, compound

HRID 19018Notes

Reaction equation

HRID 19018 reaction equation
CC1(C)[O:6][C@H:5]([CH2:7][N:8]2[CH:12]=[CH:11][C:10]([NH:13][C:14](=[O:35])[C@@H:15]([N:20]3[CH2:24][C:23]([O:25][C:26]4[CH:31]=[CH:30][CH:29]=[C:28]([Cl:32])[C:27]=4[Cl:33])=[CH:22][C:21]3=[O:34])[CH2:16][CH:17]([CH3:19])[CH3:18])=[N:9]2)[CH2:4][O:3]1.Cl>O1CCCC1.C(OCC)(=O)C>[OH:6][C@@H:5]([CH2:4][OH:3])[CH2:7][N:8]1[CH:12]=[CH:11][C:10]([NH:13][C:14](=[O:35])[C@@H:15]([N:20]2[CH2:24][C:23]([O:25][C:26]3[CH:31]=[CH:30][CH:29]=[C:28]([Cl:32])[C:27]=3[Cl:33])=[CH:22][C:21]2=[O:34])[CH2:16][CH:17]([CH3:19])[CH3:18])=[N:9]1

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 44253207HCID 44253207, compound

Product 1

HCID 57920113HCID 57920113, compound

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
25 °C

Procedure

A solution of (S)-2-[4-(2,3-dichloro-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-4-methyl-pentanoic acid [1-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl-methyl)-1H-pyrazol-3-yl]-amide (prepared as in Example 79, 145 mg, 0.27 mmol) in tetrahydrofuran (20 mL) was treated with 2N aqueous hydrochloric acid (10 mL). The reaction mixture was stirred for 4 h at 25° C. The reaction mixture was diluted with ethyl acetate, washed with water, a saturated sodium chloride solution and dried over sodium sulfate. The organic layer was concentrated to afford (S)-2-[4-(2,3-dichloro-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-4-methyl-pentanoic acid [1-((R)-2,3-dihydroxy-propyl)-1H-pyrazol-3-yl]-amide as a fluffy material. This material was dissolved in dichloromethane (20 mL) and treated with 1M hydrogen chloride in diethyl ether (2 mL). Solvents were evaporated and the residue was triturated with diethyl ether. The mixture was filtered to give (S)-2-[4-(2,3-dichloro-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-4-methyl-pentanoic acid [1-((R)-2,3-dihydroxy-propyl)-1H-pyrazol-3-yl]-amide hydrochloride (85 mg, 59%) as a yellow solid: HR-ES-MS m/z calculated for C22H26Cl2N4O5 [M+H]+ 497.1353, observed 497.1355; 1H NMR (300 MHz, DMSO-d6) δ ppm 0.90 (d, J=6.3 Hz, 3H), 0.94 (d, J=6.3 Hz, 3H), 1.35-1.66 (m, 2H), 1.67-1.86 (m, 1H), 3.19-3.38 (m, 2H), 3.70-3.93 (m, 2H), 4.09 (dd, J=13.4, 3.5 Hz, 1H), 4.16-4.32 (br. s., 2H), 4.23 (m, J=18.4 Hz, 1H), 4.62 (d, J=18.4 Hz, 1H), 4.82-4.91 (m, 1H), 4.92 (s, 1H), 6.41 (d, J=1.5 Hz, 1H), 7.42-7.59 (m, 3H), 7.64 (d, J=7.5 Hz, 1H), 10.79 (s, 1H).

Workup

  1. washwashed with water
  2. dry with materiala saturated sodium chloride solution and dried over sodium sulfate
  3. concentrationThe organic layer was concentrated

Sources & evidence

ORD record
ord-4d36013b875e407aa7337dd727443f80
Source dataset
uspto-grants-2010_06
Patent number
US07741327B2

Reaction notes

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