Tributylphosphine → {2-Chloro-4-[3-(4-chloro-phenylethynyl)-5-(1-methyl-piperidin-4-ylmethoxy)-phenylsulfanyl]-phenoxy}-acetic acid ethyl ester
Reaction equation
[CH2:1]([O:3][C:4](=[O:31])[CH2:5][O:6][C:7]1[CH:12]=[CH:11][C:10]([S:13][C:14]2[CH:19]=[C:18]([OH:20])[CH:17]=[C:16]([C:21]#[C:22][C:23]3[CH:28]=[CH:27][C:26]([Cl:29])=[CH:25][CH:24]=3)[CH:15]=2)=[CH:9][C:8]=1[Cl:30])[CH3:2].[CH3:32][N:33]1[CH2:38][CH2:37][CH:36]([CH2:39]O)[CH2:35][CH2:34]1.C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1COCC1>[CH2:1]([O:3][C:4](=[O:31])[CH2:5][O:6][C:7]1[CH:12]=[CH:11][C:10]([S:13][C:14]2[CH:19]=[C:18]([O:20][CH2:39][CH:36]3[CH2:37][CH2:38][N:33]([CH3:32])[CH2:34][CH2:35]3)[CH:17]=[C:16]([C:21]#[C:22][C:23]3[CH:24]=[CH:25][C:26]([Cl:29])=[CH:27][CH:28]=3)[CH:15]=2)=[CH:9][C:8]=1[Cl:30])[CH3:2]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
{2-Chloro-4-[3-(4-chloro-phenylethynyl)-5-hydroxyl-phenylsulfanyl]-phenoxy}-acetic acid ethyl ester (274 mg; 0.58 mmol) was dissolved in THF (15 mL) in a dried reaction flask under an atmosphere of nitrogen. 1-(Methyl-piperidin-4-yl)-methanol (100 mg; 0.48 mmol) and tributylphosphine (0.21 mL; 0.87 mmol) were added followed by 1,1′-(Azodicarbonyl)dipiperidine (0.22 g; 0.87 mmol) dissolved in THF (10 mL). The reaction mixture was stirred at room temperature for 5 h, filtered, and evaporated in vacuo. The crude product was purified by prep. HPLC (method B). Yield: 250 mg. HPLC-MS: m/z: 663.0 (M+H); Rt: 2.47 min.
Workup
- filtrationfiltered
- customevaporated in vacuo
- customThe crude product was purified by prep
Sources & evidence
- ORD record
- ord-694c380e74054cba9b9537a915d3fbe3
- Source dataset
- uspto-grants-2011_05
- Patent number
- US07943669B2
Reaction notes
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