Benzoyl chloride → N-(4-(5-((1R,2R)-2-(tert-Butyldimethylsilyloxy)-1-(3-chloro-4-cyano-2-methylphenylamino)propyl)-1,3,4-oxadiazol-2-yl)phenyl)benzamide

HRID 2388536Notes

Reaction equation

HRID 2388536 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[O:12][C:11]([C@H:13]([NH:24][C:25]3[CH:32]=[CH:31][C:28]([C:29]#[N:30])=[C:27]([Cl:33])[C:26]=3[CH3:34])[C@H:14]([O:16][Si:17]([C:20]([CH3:23])([CH3:22])[CH3:21])([CH3:19])[CH3:18])[CH3:15])=[N:10][N:9]=2)=[CH:4][CH:3]=1.[C:35](Cl)(=[O:42])[C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1>C(Cl)Cl.N1C=CC=CC=1>[Si:17]([O:16][C@H:14]([CH3:15])[C@H:13]([C:11]1[O:12][C:8]([C:5]2[CH:4]=[CH:3][C:2]([NH:1][C:35](=[O:42])[C:36]3[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=3)=[CH:7][CH:6]=2)=[N:9][N:10]=1)[NH:24][C:25]1[CH:32]=[CH:31][C:28]([C:29]#[N:30])=[C:27]([Cl:33])[C:26]=1[CH3:34])([C:20]([CH3:22])([CH3:23])[CH3:21])([CH3:19])[CH3:18]

Participants

5

Reactant 2

HCID 7412Benzoyl chlorideHCID 591930604-((1R,2R)-1-(5-(4-Aminophenyl)-1,3,4-oxadiazol-2-yl)-2-(tert-butyldimethylsilyloxy)propylamino)-2-chloro-3-methylbenzonitrile

Product 1

HCID 59193025N-(4-(5-((1R,2R)-2-(tert-Butyldimethylsilyloxy)-1-(3-chloro-4-cyano-2-methylphenylamino)propyl)-1,3,4-oxadiazol-2-yl)phenyl)benzamideYield 100%

Reagents, catalysts & solvents 2

HCID 1049PyridineSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of 4-((1R,2R)-1-(5-(4-aminophenyl)-1,3,4-oxadiazol-2-yl)-2-(tert-butyldimethylsilyloxy)propylamino)-2-chloro-3-methylbenzonitrile (306 mg, 0.61 mmol) in CH2Cl2 (10 mL) and pyridine (1.5 mL) was added benzoylchloride (0.10 mL, 0.86 mmol) at room temperature. The resultant solution stirred for 24 hours and quenched with 2N aq. HCl (15 mL). The mixture was further partitioned between H2O (40 mL) and CH2Cl2 (40 mL). The aqueous layer was extracted with CH2Cl2 (30 mL). The combined organic extracts were washed with sat. aq. NaHCO3 (2×40 mL), dried (Na2SO4), filtered and concentrated under reduced pressure to provide a colourless oil (367 mg, 100%): 1H NMR (400 MHz, d6-acetone, δ in ppm) 9.84 (s 1H), 8.10-7.98 (m, 6H), 7.67-7.48 (m, 4H), 6.96 (d, J=8.6 Hz, 1H), 5.76 (d, J=9.0 Hz, 1H), 5.05 (dd, J=6.5, 9.0 Hz, 1H), 4.67 (pentet, J=6.3 Hz, 1H), 2.36 (s, 3H), 1.45 (d, J=6.3 Hz, 3H), 0.83 (s, 9H), 0.11 (s, 3H), 0.00 (s, 3H).

Workup

  1. customquenched with 2N aq. HCl (15 mL)
  2. customThe mixture was further partitioned between H2O (40 mL) and CH2Cl2 (40 mL)
  3. extractionThe aqueous layer was extracted with CH2Cl2 (30 mL)
  4. washThe combined organic extracts were washed with sat. aq. NaHCO3 (2×40 mL)
  5. dry with materialdried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-d7ddac6b51d244bdb6a6fcac673eed36
Source dataset
uspto-grants-2012_09
Patent number
US08268872B2

Reaction notes

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