Trifluoroacetic acid → [6-(4-{1-ethyl-1-[4-(3-hydroxy-4,4-dimethyl-pentyl)-3-methyl-phenyl]-propyl}-2-methyl-phenyl)-pyridin-3-yl]-acetic Acid Ethyl Ester

HRID 546843Notes

Reaction equation

HRID 546843 reaction equation
FC(F)(F)C(O)=O.[CH2:8]([O:10][C:11](=[O:53])[CH2:12][C:13]1[CH:14]=[N:15][C:16]([C:19]2[CH:24]=[CH:23][C:22]([C:25]([C:30]3[CH:35]=[CH:34][C:33]([CH2:36][CH2:37][CH:38]([O:43][Si](C(C)(C)C)(C)C)[C:39]([CH3:42])([CH3:41])[CH3:40])=[C:32]([CH3:51])[CH:31]=3)([CH2:28][CH3:29])[CH2:26][CH3:27])=[CH:21][C:20]=2[CH3:52])=[CH:17][CH:18]=1)[CH3:9]>ClCCl>[CH2:8]([O:10][C:11](=[O:53])[CH2:12][C:13]1[CH:14]=[N:15][C:16]([C:19]2[CH:24]=[CH:23][C:22]([C:25]([CH2:26][CH3:27])([C:30]3[CH:35]=[CH:34][C:33]([CH2:36][CH2:37][CH:38]([OH:43])[C:39]([CH3:40])([CH3:41])[CH3:42])=[C:32]([CH3:51])[CH:31]=3)[CH2:28][CH3:29])=[CH:21][C:20]=2[CH3:52])=[CH:17][CH:18]=1)[CH3:9]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 57709021{6-[4-(1-{4-[3-(t-butyl-dimethyl-silanyloxy)-4,4-dimethyl-pentyl]-3-methyl-phenyl}-1-ethyl-propyl)-2-methyl-phenyl]-pyridin-3-yl}-acetic Acid Ethyl Ester

Product 1

HCID 57443486[6-(4-{1-ethyl-1-[4-(3-hydroxy-4,4-dimethyl-pentyl)-3-methyl-phenyl]-propyl}-2-methyl-phenyl)-pyridin-3-yl]-acetic Acid Ethyl EsterYield 100%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Trifluoroacetic acid (0.03 mL) was added to a solution of {6-[4-(1-{4-[3-(t-butyl-dimethyl-silanyloxy)-4,4-dimethyl-pentyl]-3-methyl-phenyl}-1-ethyl-propyl)-2-methyl-phenyl]-pyridin-3-yl}-acetic acid ethyl ester (Example 23-(2); 2.1 mg, 0.0033 mmol) in dichloromethane (0.15 mL) at room temperature, and the mixture was stirred at room temperature for one hour and 15 minutes. The solvent in the reaction solution was distilled off under reduced pressure. The residue was purified by silica gel chromatography (hexane/ethyl acetate=3/1) to give the title compound (1.7 mg, 100%).

Workup

  1. distillationThe solvent in the reaction solution was distilled off under reduced pressure
  2. customThe residue was purified by silica gel chromatography (hexane/ethyl acetate=3/1)

Sources & evidence

ORD record
ord-c07c063636b64cd893e44d0c4cf53518
Source dataset
uspto-grants-2011_05
Patent number
US07935688B2

Reaction notes

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