Sodium Carbonate → 2-(2-((5-ethoxy-2-fluoro-3-isopropoxyphenyl)(4-(5-methyl-1,2,4-oxadiazol-3-yl)phenylamino)methyl)-1-trityl-1H-imidazol-4-yl)benzaldehyde

HRID 2104983Notes

Reaction equation

HRID 2104983 reaction equation
Br[C:2]1[N:3]=[C:4]([CH:26]([C:40]2[CH:45]=[C:44]([O:46][CH2:47][CH3:48])[CH:43]=[C:42]([O:49][CH:50]([CH3:52])[CH3:51])[C:41]=2[F:53])[NH:27][C:28]2[CH:33]=[CH:32][C:31]([C:34]3[N:38]=[C:37]([CH3:39])[O:36][N:35]=3)=[CH:30][CH:29]=2)[N:5]([C:7]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:6]=1.[CH:54]([C:56]1[CH:61]=[CH:60][CH:59]=[CH:58][C:57]=1B(O)O)=[O:55].C([O-])([O-])=O.[Na+].[Na+]>COCCOC.O>[CH2:47]([O:46][C:44]1[CH:43]=[C:42]([O:49][CH:50]([CH3:51])[CH3:52])[C:41]([F:53])=[C:40]([CH:26]([NH:27][C:28]2[CH:29]=[CH:30][C:31]([C:34]3[N:38]=[C:37]([CH3:39])[O:36][N:35]=3)=[CH:32][CH:33]=2)[C:4]2[N:5]([C:7]([C:14]3[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=3)([C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=3)[C:8]3[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=3)[CH:6]=[C:2]([C:57]3[CH:58]=[CH:59][CH:60]=[CH:61][C:56]=3[CH:54]=[O:55])[N:3]=2)[CH:45]=1)[CH3:48]

Participants

5

Reactant 3

HCID 10340Sodium CarbonateHCID 2921892-Formylphenylboronic acidHCID 68813809N-((4-bromo-1-trityl-1H-imidazol-2-yl)(5-ethoxy-2-fluoro-3-isopropoxyphenyl)methyl)-4-(5-methyl-1,2,4-oxadiazol-3-yl)benzenamine

Product 1

HCID 866079362-(2-((5-ethoxy-2-fluoro-3-isopropoxyphenyl)(4-(5-methyl-1,2,4-oxadiazol-3-yl)phenylamino)methyl)-1-trityl-1H-imidazol-4-yl)benzaldehydeYield 96.4%

Reagents, catalysts & solvents 1

HCID 18180031Water 1,2-dimethoxyethaneSolvent

Conditions

Temperature
150 °C

Procedure

A suspension of Intermediate 66.3 (100 mg, 0.13 mmol), 2-formyl phenylboronic acid (30 mg, 0.2 mmol), Na2CO3 (56 mg, 0.52 mmol) in 3:1 DME/H2O (4 mL) was degassed and then added in Pd(PPh3)4 (10 mg). The reaction mixture was heated to 150° C. for 8 min in microwave. The reaction mixture was then partionated between EtOAc and sat. NaCl, the organic layer was collected and dried over (Na2SO4), filtered and concentrated. The residue was subject to chromatographic purification (0-30% EtOAc/hexanes gradient), 100 mg (65%) of Intermediate 122.1 was obtained. LCMS (2 min gradient) RT 2.35 min, 798.3 (M+H).

Workup

  1. customwas degassed
  2. additionadded in Pd(PPh3)4 (10 mg)
  3. customthe organic layer was collected
  4. dry with materialdried over (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was subject to chromatographic purification (0-30% EtOAc/hexanes gradient)

Sources & evidence

ORD record
ord-224d68475bb44f48a8d31c7581012545
Source dataset
uspto-grants-2009_08
Patent number
US07576098B2

Reaction notes

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