Dimethylamine → (S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-(2-(6-(dimethylamino)nicotinoyloxy)acetoxy)-ethyl)pyridine 1-oxide

HRID 1776651Notes

Reaction equation

HRID 1776651 reaction equation
[Cl:1][C:2]1[CH:3]=[N+:4]([O-:40])[CH:5]=[C:6]([Cl:39])[C:7]=1[CH2:8][C@H:9]([O:25][C:26](=[O:38])[CH2:27][O:28][C:29](=[O:37])[C:30]1[CH:35]=[CH:34][C:33](Cl)=[N:32][CH:31]=1)[C:10]1[CH:15]=[CH:14][C:13]([O:16][CH:17]([F:19])[F:18])=[C:12]([O:20][CH2:21][CH:22]2[CH2:24][CH2:23]2)[CH:11]=1.[CH3:41][NH:42][CH3:43]>C1COCC1>[Cl:1][C:2]1[CH:3]=[N+:4]([O-:40])[CH:5]=[C:6]([Cl:39])[C:7]=1[CH2:8][C@@H:9]([C:10]1[CH:15]=[CH:14][C:13]([O:16][CH:17]([F:18])[F:19])=[C:12]([O:20][CH2:21][CH:22]2[CH2:24][CH2:23]2)[CH:11]=1)[O:25][C:26](=[O:38])[CH2:27][O:28][C:29](=[O:37])[C:30]1[CH:35]=[CH:34][C:33]([N:42]([CH3:43])[CH3:41])=[N:32][CH:31]=1

Participants

4

Reactant 2

HCID 674DimethylamineHCID 86679594(S)-3,5-dichloro-4-(2-(2-(6-chloronicotinoyloxy)acetoxy)-2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)ethyl)pyridine 1-oxide

Product 1

HCID 86679595(S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-(2-(6-(dimethylamino)nicotinoyloxy)acetoxy)-ethyl)pyridine 1-oxideYield 88%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A solution of (S)-3,5-dichloro-4-(2-(2-(6-chloronicotinoyloxy)acetoxy)-2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)ethyl)pyridine 1-oxide (202 mg, 0.327 mmol) and dimethylamine (327 μl, 0.654 mmol) in dry THF (5 ml) was stirred at room temperature for 2 days. The solvent was evaporated and the residue was portioned between sat. sol. NaHCO3 and ethyl acetate; the organic phase was washed with brine, dried over Na2SO4, filtered and evaporated and the residue was triturated with iPr2O, filtered and dried under vacuum to give (S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-(2-(6-(dimethylamino)nicotinoyloxy)acetoxy)-ethyl)pyridine 1-oxide as a white solid (180 mg, 0.287 mmol, 88% yield, LC-MS purity (BPI): 98%, MS/ESI+ 626.24 [MH]+, [αD]=−37.04, c=0.50, DCM).

Workup

  1. customThe solvent was evaporated
  2. washthe organic phase was washed with brine
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. customevaporated
  6. customthe residue was triturated with iPr2O
  7. filtrationfiltered
  8. customdried under vacuum

Sources & evidence

ORD record
ord-f4ab5715ca774dcf8148efa0d1f7d97e
Source dataset
uspto-grants-2016_02
Patent number
US09265768B2

Reaction notes

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