Lithium hydroxide, monohydrate → 2-(2-tert-Butoxy-2-oxoethyl)-6-(3-chloro-4-fluorobenzyl)-4-methoxy-3,5-dioxo-2,3,5,6,7,8-hexahydro-2,6-naphthyridine-1-carboxylic acid

HRID 2426460Notes

Reaction equation

HRID 2426460 reaction equation
[C:1]([O:5][C:6](=[O:35])[CH2:7][N:8]1[C:17](=[O:18])[C:16]([O:19][CH3:20])=[C:15]2[C:10]([CH2:11][CH2:12][N:13]([CH2:22][C:23]3[CH:28]=[CH:27][C:26]([F:29])=[C:25]([Cl:30])[CH:24]=3)[C:14]2=[O:21])=[C:9]1[C:31]([O:33]C)=[O:32])([CH3:4])([CH3:3])[CH3:2].O.[OH-].[Li+]>O1CCCC1.O>[C:1]([O:5][C:6](=[O:35])[CH2:7][N:8]1[C:17](=[O:18])[C:16]([O:19][CH3:20])=[C:15]2[C:10]([CH2:11][CH2:12][N:13]([CH2:22][C:23]3[CH:28]=[CH:27][C:26]([F:29])=[C:25]([Cl:30])[CH:24]=3)[C:14]2=[O:21])=[C:9]1[C:31]([OH:33])=[O:32])([CH3:4])([CH3:2])[CH3:3]

Participants

5

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 66996943Methyl 2-(2-tert-butoxy-2-oxoethyl)-6-(3-chloro-4-fluorobenzyl)-4-methoxy-3,5-dioxo-2,3,5,6,7,8-hexahydro-2,6-naphthyridine-1-carboxylate

Product 1

HCID 669968852-(2-tert-Butoxy-2-oxoethyl)-6-(3-chloro-4-fluorobenzyl)-4-methoxy-3,5-dioxo-2,3,5,6,7,8-hexahydro-2,6-naphthyridine-1-carboxylic acid

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of methyl 2-(2-tert-butoxy-2-oxoethyl)-6-(3-chloro-4-fluorobenzyl)-4-methoxy-3,5-dioxo-2,3,5,6,7,8-hexahydro-2,6-naphthyridine-1-carboxylate (0.49 g, 0.96 mmol) and lithium hydroxide monohydrate (0.12 g, 2.9 mmol) in a mixture of tetrahydrofuran (3 mL) and water (2 mL) was stirred at room temperature for one hour. The reaction mixture was concentrated under vacuum. The residue was partitioned between dichloromethane and dilute hydrochloric acid. The organic extract was dried over anhydrous sodium sulfate, filtered, and concentrated under vacuum to provide the title compound. This was used in the following step without further purification. ES MS M+1=495

Workup

  1. concentrationThe reaction mixture was concentrated under vacuum
  2. customThe residue was partitioned between dichloromethane and dilute hydrochloric acid
  3. extractionThe organic extract
  4. dry with materialwas dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-cd4eb0a6caee4f9797cc76ef9fc11451
Source dataset
uspto-grants-2011_06
Patent number
US07968564B2

Reaction notes

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