1,2-Dichloroethane → HCID 86681618, compound

HRID 571202Notes

Reaction equation

HRID 571202 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:38]=[C:37]2[C:33]([C:34](=[O:44])[C:35](=[O:43])[N:36]2[CH2:39][C:40](O)=[O:41])=[CH:32][CH:31]=1.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:36]1[C:37]2[C:33](=[CH:32][CH:31]=[C:30]([O:29][CH3:28])[CH:38]=2)[C:34](=[O:44])[C:35]1=[O:43]

Participants

6

Reactant 3

HCID 111,2-DichloroethaneHCID 61355410HCID 61355410, compoundHCID 71092687HCID 71092687, compound

Product 1

HCID 86681618HCID 86681618, compoundYield 55%

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 (0.200 g, 0.476 mmol), 2-(6-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 for 4 hours; then the reaction mixture 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-(6-methoxy-2,3-dioxoindolin-1-yl)acetoxy)ethyl)pyridine 1-oxide (0.166 g, 0.260 mmol, 55% yield). MS/ESI+ 637.19 [MH]+; [αD]=+67.91 c=0.22 in DCM; 1H NMR (300 MHz, DMSO-d6) δ ppm 8.37 (s, 2H), 7.61 (d, 1H), 7.17 (d, 1H), 7.05 (d, 1H), 6.94 (dd, 1H), 7.07 (t, 1H), 6.69 (dd, 1H), 6.66 (d, 1H), 6.02 (dd, 1H), 4.60 (s, 2H), 3.89 (d, 2H), 3.86 (s, 3H), 3.38 (dd, 1H), 3.19 (dd, 1H), 1.07-1.33 (m, 1H), 0.48-0.67 (m, 2H), 0.18-0.48 (m, 2H)

Workup

  1. washthen the reaction mixture 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-ee5a6f4cdf0348c8a3b177df69652155
Source dataset
uspto-grants-2015_05
Patent number
US09024027B2

Reaction notes

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