Dichloromethane → 2-{[4-(2-{(5-Ethylpyrimidin-2-yl)[(6-phenylpyridin-3-yl)methyl]amino}ethyl)-1,3-thiazol-2-yl]thio}-2-methylpropionic acid hydrochloride

HRID 914459Notes

Reaction equation

HRID 914459 reaction equation
C([O:5][C:6](=[O:40])[C:7]([S:10][C:11]1[S:12][CH:13]=[C:14]([CH2:16][CH2:17][N:18]([C:32]2[N:37]=[CH:36][C:35]([CH2:38][CH3:39])=[CH:34][N:33]=2)[CH2:19][C:20]2[CH:21]=[N:22][C:23]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)=[CH:24][CH:25]=2)[N:15]=1)([CH3:9])[CH3:8])(C)(C)C.FC(F)(F)C(O)=O.[Cl:48]CCl>>[ClH:48].[CH2:38]([C:35]1[CH:36]=[N:37][C:32]([N:18]([CH2:19][C:20]2[CH:21]=[N:22][C:23]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)=[CH:24][CH:25]=2)[CH2:17][CH2:16][C:14]2[N:15]=[C:11]([S:10][C:7]([CH3:9])([CH3:8])[C:6]([OH:40])=[O:5])[S:12][CH:13]=2)=[N:33][CH:34]=1)[CH3:39]

Participants

4

Reactant 3

HCID 6344DichloromethaneHCID 6422Trifluoroacetic acidHCID 597594392-{[4-(2-{(5-Ethylpyrimidin-2-yl)[(6-phenylpyridin-3-yl)methyl]amino}ethyl)-1,3-thiazol-2-yl]thio}-2-methylpropionic acid tert-butyl ester

Product 1

HCID 674011322-{[4-(2-{(5-Ethylpyrimidin-2-yl)[(6-phenylpyridin-3-yl)methyl]amino}ethyl)-1,3-thiazol-2-yl]thio}-2-methylpropionic acid hydrochloride

Procedure

2-{[4-(2-{(5-Ethylpyrimidin-2-yl)[(6-phenylpyridin-3-yl)methyl]amino}ethyl)-1,3-thiazol-2-yl]thio}-2-methylpropionic acid tert-butyl ester (740 mg) obtained in Example 327-1 was dissolved in dichloromethane (10 mL), trifluoroacetic acid (4 mL) was added, and the mixture was stirred at room temperature for 20 hr. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=1:1 to 0:1). The obtained compound was dissolved in diethyl ether (10 mL), 4 mol/L hydrochloric acid-ethyl acetate (2 mL) was added, and the mixture was stirred at room temperature for 1 hr. The precipitated solid was collected by filtration to give the title compound (220 mg) as a white solid.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. customthe residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=1:1 to 0:1)
  3. dissolutionThe obtained compound was dissolved in diethyl ether (10 mL)
  4. addition4 mol/L hydrochloric acid-ethyl acetate (2 mL) was added
  5. stirringthe mixture was stirred at room temperature for 1 hr
  6. filtrationThe precipitated solid was collected by filtration

Sources & evidence

ORD record
ord-b794e5253bd1420c8a073ce1aa8a79b2
Source dataset
uspto-grants-2011_09
Patent number
US08026370B2

Reaction notes

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