Lithium hydroxide, monohydrate → HCID 18186385, compound

HRID 1180197Notes

Reaction equation

HRID 1180197 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH2:17][CH2:16][C:15]3[C:10](=[CH:11][CH:12]=[C:13]([OH:18])[CH:14]=3)[CH:9]2[CH2:19][C:20]2[CH:25]=[CH:24][C:23](/[CH:26]=[CH:27]/[C:28]([O:30]CC)=[O:29])=[CH:22][CH:21]=2)=[CH:4][CH:3]=1.O.[OH-].[Li+]>O1CCCC1.O>[F:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]2[CH2:17][CH2:16][C:15]3[C:10](=[CH:11][CH:12]=[C:13]([OH:18])[CH:14]=3)[CH:9]2[CH2:19][C:20]2[CH:25]=[CH:24][C:23](/[CH:26]=[CH:27]/[C:28]([OH:30])=[O:29])=[CH:22][CH:21]=2)=[CH:6][CH:7]=1

Participants

5

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 58978015HCID 58978015, compound

Product 1

HCID 18186385HCID 18186385, compoundYield 569.4%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of ethyl (2E)-3-(4-{[2-(4-fluorophenyl)-6-hydroxy(1,2,3,4-tetrahydroisoquinolyl)]methyl}phenyl)prop-2-enoate (0.16 g, 0.37 mmol) in tetrahydrofuran (6 mL) was added a solution of lithium hydroxide monohydrate (0.20 g, 4.77 mmol) in water (3 mL). After it stirring at room temperature for 20 hours, the tetrahydrofuran was evaporated. The aqueous solution was neutralized with 5% aqueous HCl and extracted with dichloromethane. The extracts were dried over magnesium sulfate, filtered, and concentrated. The residue was then purified by chromatography (SiO2, 75-100% ethyl acetate/hexane) to provide the title compound (0.85 g, 57% yield): 1H NMR (CDCl3) 7.72 (d, 1H), 7.40 (d, 2H), 7.02 (d, 2H), 6.93 (m, 2H), 6.76 (m, 2H), 6.61 (m, 2H), 6.56 (dd, 1H), 6.42 (d, 1H), 4.75 (t, 1H), 3.55 (m, 1H), 3.46 (m, 1H), 3.16 (m, 1H), 2.87-3.00(m, 2H), 2.64 (dt, 1H); ES-MS m/z 404 [M+H]+.

Workup

  1. customthe tetrahydrofuran was evaporated
  2. extractionextracted with dichloromethane
  3. dry with materialThe extracts were dried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was then purified by chromatography (SiO2, 75-100% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-c871c393d6d444d0af3d99340c689af9
Source dataset
uspto-grants-2007_10
Patent number
US07279489B2

Reaction notes

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