Lithium Hydroxide → (S)-3-(1-methyl-1H-imidazol-5-yl)-3-(4-((5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)methoxy)phenyl)propanoic acid

HRID 731199Notes

Reaction equation

HRID 731199 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]([C:15]2[N:19]([CH3:20])[CH:18]=[N:17][CH:16]=2)[CH2:9][C:10]([O:12]CC)=[O:11])=[CH:4][CH:3]=1.Br[CH2:22][C:23]1[CH:24]=[C:25]2[C:30](=[CH:31][CH:32]=1)[C:29]([CH3:34])([CH3:33])[CH2:28][CH2:27][C:26]2([CH3:36])[CH3:35].C(=O)([O-])[O-].[Cs+].[Cs+].[Li+].[OH-]>CN(C=O)C.O>[CH3:20][N:19]1[C:15]([C@H:8]([C:5]2[CH:4]=[CH:3][C:2]([O:1][CH2:22][C:23]3[CH:32]=[CH:31][C:30]4[C:29]([CH3:34])([CH3:33])[CH2:28][CH2:27][C:26]([CH3:36])([CH3:35])[C:25]=4[CH:24]=3)=[CH:7][CH:6]=2)[CH2:9][C:10]([OH:12])=[O:11])=[CH:16][N:17]=[CH:18]1

Participants

7

Reactant 4

HCID 3939Lithium HydroxideHCID 10796Cesium carbonateHCID 27355976-(Bromomethyl)-1,1,4,4-Tetramethyl-1,2,3,4-TetrahydronaphthaleneHCID 57835788(S)-ethyl 3-(4-hydroxyphenyl)-3-(1-methyl-1H-imidazol-5-yl)propanoate

Product 1

HCID 24967390(S)-3-(1-methyl-1H-imidazol-5-yl)-3-(4-((5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)methoxy)phenyl)propanoic acidYield 53.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

A mixture of 74.5 (0.15 mmol), 6-(bromomethyl)-1,1,4,4-tetramethyl-1,2,3,4-tetrahydronaphthalene (0.18 mmol) and cesium carbonate (0.2 mmol) in DMF (2 mL), was stirred at room temperature for 16 hours. To the reaction mixture was added LiOH in water (1 mL, 1N solution), and the reaction was stirred at 50° C. for 3 hours. The mixture was filtered and purified by reverse phase HPLC to give 74 (35 mg, 0.08 mmol) after lyophilization. MS ESI (pos.) m/e 447.3 (M+H). 1H NMR (500 MHz) (CDCl3) δ 8.64 (1H, s), 7.59 (1H, s), 7.33-7.36 (2H, m), 7.20 (1H, dd, J=7.9, 1.8 Hz), 7.08 (2H, d, J=8.5 Hz), 6.98 (2H, d, J=8.5 Hz), 4.98 (2 H, s), 4.53 (1H, m), 3.57 (3H, s), 2.96-3.06 (2H, m), 1.71 (4H, s), 1.31 (6H, s), 1.30 (6H, s).

Workup

  1. stirringthe reaction was stirred at 50° C. for 3 hours
  2. filtrationThe mixture was filtered
  3. custompurified by reverse phase HPLC

Sources & evidence

ORD record
ord-20315a487e454302a61751b744ea417c
Source dataset
uspto-grants-2009_09
Patent number
US07582803B2

Reaction notes

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