Lithium hydroxide, monohydrate → HCID 86706070, compound

HRID 2176232Notes

Reaction equation

HRID 2176232 reaction equation
C[O:2][C:3]([C:5]1(/[CH:11]=[CH:12]/[C:13]2[CH:22]=[C:21]3[C:16]([CH:17]=[CH:18][C:19]([C@H:23]([NH:25][C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[CH3:24])=[N:20]3)=[CH:15][CH:14]=2)[CH2:10][O:9][CH2:8][CH2:7][O:6]1)=[O:4].O.[OH-].[Li+]>O1CCCC1.O>[C:29]([O:28][C:26]([NH:25][C@@H:23]([C:19]1[CH:18]=[CH:17][C:16]2[C:21](=[CH:22][C:13](/[CH:12]=[CH:11]/[C:5]3([C:3]([OH:4])=[O:2])[CH2:10][O:9][CH2:8][CH2:7][O:6]3)=[CH:14][CH:15]=2)[N:20]=1)[CH3:24])=[O:27])([CH3:30])([CH3:31])[CH3:32]

Participants

5

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 86706069HCID 86706069, compound

Product 1

HCID 86706070HCID 86706070, compoundYield 100%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution of 2-{(E)-2-[2-((R)-1-tert-butoxycarbonylamino-ethyl)-quinolin-7-yl]-vinyl}-[1,4]dioxane-2-carboxylic acid methyl ester (157 mg, 0.35 mmol) in tetrahydrofuran (6 mL) was stirred at 5° C. under nitrogen. A solution of lithium hydroxide monohydrate (30 mg, 0.71 mmol) in water (1.5 mL) was added and the reaction mixture was stirred at room temperature for 18 h. The majority of the organic solvent was evaporated. The solution was acidified to pH 2 with 2 M hydrochloric acid and the mixture was extracted with dichloromethane. The organic extracts were combined and washed with brine. The organic solution was filtered through a hydrophobic frit and the filtrate was evaporated to afford the title compound (149 mg, 100%) as a pale yellow foam and as a 1:1 mixture of diastereoisomers. LCMS (m/z) 429.1 [M+H], Tr=1.87 min.

Workup

  1. customThe majority of the organic solvent was evaporated
  2. extractionthe mixture was extracted with dichloromethane
  3. washwashed with brine
  4. filtrationThe organic solution was filtered through a hydrophobic frit
  5. customthe filtrate was evaporated

Sources & evidence

ORD record
ord-d9976e26e806492bb50a9faaccaa6f1c
Source dataset
uspto-grants-2015_06
Patent number
US09062092B2

Reaction notes

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