1,2-Dichloroethane → HCID 86681616, compound

HRID 571200Notes

Reaction equation

HRID 571200 reaction equation
[Cl:1][C:2]1[CH:3]=[N+:4]([O-:27])[CH:5]=[C:6]([Cl:26])[C:7]=1[CH2:8][C@@H:9]([C:11]1[CH:16]=[CH:15][C:14]([O:17][CH:18]([F:20])[F:19])=[C:13]([O:21][CH2:22][CH:23]2[CH2:25][CH2:24]2)[CH:12]=1)[OH:10].[CH3:28][O:29][C:30]1[CH:31]=[C:32]2[C:36](=[CH:37][CH:38]=1)[N:35]([CH2:39][C:40](O)=[O:41])[C:34](=[O:43])[C:33]2=[O:44].C(Cl)CCl>CN(C1C=CN=CC=1)C.C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[N+:4]([O-:27])[CH:5]=[C:6]([Cl:26])[C:7]=1[CH2:8][C@@H:9]([C:11]1[CH:16]=[CH:15][C:14]([O:17][CH:18]([F:20])[F:19])=[C:13]([O:21][CH2:22][CH:23]2[CH2:25][CH2:24]2)[CH:12]=1)[O:10][C:40](=[O:41])[CH2:39][N:35]1[C:36]2[C:32](=[CH:31][C:30]([O:29][CH3:28])=[CH:38][CH:37]=2)[C:33](=[O:44])[C:34]1=[O:43]

Participants

6

Reactant 3

HCID 111,2-DichloroethaneHCID 17723874HCID 17723874, compoundHCID 71092687(S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-hydroxyethyl)pyridine 1-oxide

Product 1

HCID 86681616HCID 86681616, compoundYield 61.3%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

A mixture of (S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-hydroxyethyl)pyridine 1-oxide (0.2 g, 0.476 mmol), 2-(5-methoxy-2,3-dioxoindolin-1-yl)acetic acid (0.112 g, 0.476 mmol), DMAP (0.029 g, 0.238 mmol) and EDC (0.274 g, 1.428 mmol) in DCM (10 ml) was stirred at room temperature overnight. The reaction was washed with 1N HCl, aqueous 5% NaHCO3 and brine. The organic layer was dried over Na2SO4 and evaporated to dryness. The crude was purified by flash chromatography on silica gel (ethyl acetate:DCM=7:3) to give (S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-(2-(5-methoxy-2,3-dioxoindolin-1-yl)acetoxy)ethyl)pyridine 1-oxide (0.18635 g, 0.292 mmol, 61% yield). MS/ESI+ 637.19 [MH]+; [αD]=+60.39 c=0.155 in DCM; 1H NMR (300 MHz, DMSO-d6) δ ppm 8.41 (s, 2H), 7.22 (dd, 1H), 7.19-7.21 (m, 1H), 7.18 (d, 1H), 7.06 (d, 1H), 6.89-6.98 (m, 2H), 7.07 (t, 1H), 6.03 (dd, 1H), 4.62 (d, 1H), 4.54 (d, 1H), 3.89 (d, 2H), 3.81 (s, 3H), 3.40 (dd, 1H), 3.21 (dd, 1H), 1.09-1.37 (m, 1H), 0.51-0.67 (m, 2H), 0.28-0.47 (m, 2H)

Workup

  1. washThe reaction was washed with 1N HCl, aqueous 5% NaHCO3 and brine
  2. dry with materialThe organic layer was dried over Na2SO4
  3. customevaporated to dryness
  4. customThe crude was purified by flash chromatography on silica gel (ethyl acetate:DCM=7:3)

Sources & evidence

ORD record
ord-8eb602283d2e46d2875d76ca494b507e
Source dataset
uspto-grants-2015_05
Patent number
US09024027B2

Reaction notes

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