2-chloro-N-(1,2-oxazol-3-yl)acetamide → (3R)-3-(2-(3-(ethoxycarbonyl)phenylamino)-2-(6-methoxypyridin-3-yl)acetoxy)-1-(2-(isoxazol-3-ylamino)-2-oxoethyl)-1-azoniabicyclo[2.2.2]octane chloride

HRID 469502Notes

Reaction equation

HRID 469502 reaction equation
[Cl:1][CH2:2][C:3]([NH:5][C:6]1[CH:10]=[CH:9][O:8][N:7]=1)=[O:4].[CH3:11][O:12][C:13]1[N:18]=[CH:17][C:16]([CH:19]([NH:31][C:32]2[CH:33]=[C:34]([CH:40]=[CH:41][CH:42]=2)[C:35]([O:37][CH2:38][CH3:39])=[O:36])[C:20](=[O:30])[O:21][C@@H:22]2[CH:27]3[CH2:28][CH2:29][N:24]([CH2:25][CH2:26]3)[CH2:23]2)=[CH:15][CH:14]=1>CCOC(C)=O>[Cl-:1].[CH2:38]([O:37][C:35]([C:34]1[CH:33]=[C:32]([NH:31][CH:19]([C:16]2[CH:17]=[N:18][C:13]([O:12][CH3:11])=[CH:14][CH:15]=2)[C:20]([O:21][C@@H:22]2[CH:27]3[CH2:28][CH2:29][N+:24]([CH2:2][C:3]([NH:5][C:6]4[CH:10]=[CH:9][O:8][N:7]=4)=[O:4])([CH2:25][CH2:26]3)[CH2:23]2)=[O:30])[CH:42]=[CH:41][CH:40]=1)=[O:36])[CH3:39]

Participants

4

Reactant 2

HCID 133629182-chloro-N-(1,2-oxazol-3-yl)acetamideHCID 58556990ethyl 3-(1-(6-methoxypyridin-3-yl)-2-oxo-2-((R)-quinuclidin-3-yloxy)ethylamino)benzoate

Product 1

HCID 86660337(3R)-3-(2-(3-(ethoxycarbonyl)phenylamino)-2-(6-methoxypyridin-3-yl)acetoxy)-1-(2-(isoxazol-3-ylamino)-2-oxoethyl)-1-azoniabicyclo[2.2.2]octane chlorideYield 39.7%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

2-Chloro-N-(isoxazol-3-yl)acetamide (18.3 mg, 0.11 mmol) was added to a solution of ethyl 3-(1-(6-methoxypyridin-3-yl)-2-oxo-2-((R)-quinuclidin-3-yloxy)ethylamino)benzoate (C65) (50 mg, 0.11 mmol) in EtOAc (2 ml). The reaction mixture was stirred at room temperature overnight. The solvent was evaporated, and the residue was triturated with Et2O, filtered and dried. The product was purified by preparative HPLC (Eluent: CH3CN/H2O) to obtain (3R)-3-(2-(3-(ethoxycarbonyl)phenylamino)-2-(6-methoxypyridin-3-yl)acetoxy)-1-(2-(isoxazol-3-ylamino)-2-oxoethyl)-1-azoniabicyclo[2.2.2]octane chloride (26.2 mg, 38.4% yield).

Workup

  1. customThe solvent was evaporated
  2. customthe residue was triturated with Et2O
  3. filtrationfiltered
  4. customdried
  5. customThe product was purified by preparative HPLC (Eluent: CH3CN/H2O)

Sources & evidence

ORD record
ord-bc7fc2ad38df40e2b0d624d4a4d332ab
Source dataset
uspto-grants-2014_01
Patent number
US08629160B2

Reaction notes

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