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Water → 3-(4-{6-[5-(3-Chlorophenylamino)-[1,3,4]oxadiazol-2-yl]-1H-benzoimidazol-2-yl}-3,5-dimethylphenyl)-propionic acid methyl ester

HRID 1360777
Notes
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Reaction equation

HRID 1360777 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([NH:8][C:9]2[O:13][C:12]([C:14]3[CH:15]=[C:16]([NH2:21])[C:17]([NH2:20])=[CH:18][CH:19]=3)=[N:11][N:10]=2)[CH:5]=[CH:6][CH:7]=1.[CH3:22][O:23][C:24](=[O:37])[CH2:25][CH2:26][C:27]1[CH:32]=[C:31]([CH3:33])[C:30]([CH:34]=O)=[C:29]([CH3:36])[CH:28]=1.C(S([O-])(=O)=O)(F)(F)F.C(S([O-])(=O)=O)(F)(F)F.C(S([O-])(=O)=O)(F)(F)F.[Yb+3].O>CS(C)=O>[CH3:22][O:23][C:24](=[O:37])[CH2:25][CH2:26][C:27]1[CH:32]=[C:31]([CH3:33])[C:30]([C:34]2[NH:21][C:16]3[CH:15]=[C:14]([C:12]4[O:13][C:9]([NH:8][C:4]5[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[CH:3]=5)=[N:10][N:11]=4)[CH:19]=[CH:18][C:17]=3[N:20]=2)=[C:29]([CH3:36])[CH:28]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 962WaterHCID 2733225Ytterbium triflateHCID 54209618Methyl 3-(3,5-dimethyl-4-formylphenyl)propionateHCID 669663754-[5-(3-Chlorophenylamino)-[1,3,4]oxadiazol-2-yl]-benzene-1,2-diamine

Product 1

HCID 669664903-(4-{6-[5-(3-Chlorophenylamino)-[1,3,4]oxadiazol-2-yl]-1H-benzoimidazol-2-yl}-3,5-dimethylphenyl)-propionic acid methyl ester

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

To a solution of 4-[5-(3-chlorophenylamino)-[1,3,4]oxadiazol-2-yl]-benzene-1,2-diamine (210 mg, 0.7 mmol) and 3-(4-formyl-3,5-dimethylphenyl)-propionic acid methyl ester (169 mg, 0.77 mmol) (from step D) in DMSO (2.5 mL) was added Yb(OTf)3 (86 mg, 0.14 mmol) and the mixture was stirred at RT for 72 h. The mixture was poured into water and the resulting precipitate was filtered and washed with water. The solid was purified by flash chromatography using 10% MeOH/CH2Cl2 as eluent to give the title compound as a tan solid. MS: m/z 502.0 (M+1). H1-NMR (DMSO-d6): δ ppm 12.91 (m, 0.6H), 10.93 (s, 0.3H), 10.48 (dd, 0.3H), 8.33 (s, 0.4H), 8.13 (s, 0.6H), 7.89-7.73 (M, 2.3H), 7.68 (d, 0.3H), 7.59 (d, 0.4H), 7.52 (m, 1H), 7.46-7.35 (m, 1H), 7.08 (s, 3H), 3.61 (s, 3H), 2.87 (t, 2H), 2.69 (t, 2H), 2.10 (s, 3H), 2.09 (s, 3H).

Workup

  1. filtrationthe resulting precipitate was filtered
  2. washwashed with water
  3. customThe solid was purified by flash chromatography

Sources & evidence

ORD record
ord-3d105c9f7ea24e79baf171947458b97e
Source dataset
uspto-grants-2011_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07879850B2

Reaction notes

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