1,2-Dichloroethane → HCID 89511771, compound

HRID 571259Notes

Reaction equation

HRID 571259 reaction equation
[C:1]([O:5][C:6]([N:8]([C:13]1[CH:26]=[CH:25][C:16]2[N:17]([CH2:21][C:22]([OH:24])=[O:23])[C:18](=[O:20])[O:19][C:15]=2[CH:14]=1)[S:9]([CH3:12])(=[O:11])=[O:10])=[O:7])([CH3:4])([CH3:3])[CH3:2].[Cl:27][C:28]1[CH:29]=[N+:30]([O-:53])[CH:31]=[C:32]([Cl:52])[C:33]=1[CH2:34][C@@H:35]([C:37]1[CH:42]=[CH:41][C:40]([O:43][CH:44]([F:46])[F:45])=[C:39]([O:47][CH2:48][CH:49]2[CH2:51][CH2:50]2)[CH:38]=1)O.C(Cl)CCl>CN(C1C=CN=CC=1)C.C(Cl)Cl>[C:1]([O:5][C:6]([N:8]([C:13]1[CH:26]=[CH:25][C:16]2[N:17]([CH2:21][C:22]([O:24][C@H:35]([C:37]3[CH:42]=[CH:41][C:40]([O:43][CH:44]([F:45])[F:46])=[C:39]([O:47][CH2:48][CH:49]4[CH2:50][CH2:51]4)[CH:38]=3)[CH2:34][C:33]3[C:32]([Cl:52])=[CH:31][N+:30]([O-:53])=[CH:29][C:28]=3[Cl:27])=[O:23])[C:18](=[O:20])[O:19][C:15]=2[CH:14]=1)[S:9]([CH3:12])(=[O:10])=[O:11])=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 3

HCID 111,2-DichloroethaneHCID 71092687(S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-hydroxyethyl)pyridine 1-oxideHCID 89511667HCID 89511667, compound

Product 1

HCID 89511771HCID 89511771, compoundYield 50.3%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent2×

Procedure

A mixture of 2-(6-(N-(tert-butoxycarbonyl)methylsulfonamido)-2-oxobenzo[d]oxazol-3(2H)-yl)acetic acid (0.234 g, 0.606 mmol), (S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-hydroxyethyl)pyridine 1-oxide (0.212 g, 0.505 mmol), EDC (0.290 g, 1.514 mmol) and DMAP (0.031 g, 0.252 mmol) in DCM (15 ml) was stirred at room temperature for 2 hours. The mixture was diluted with DCM and washed with 1N HCl, 1N NaHCO3 and brine. The organic phase was dried over sodium sulfate and the solvent was removed. The crude was purified by flash chromatography on silica gel cartridge (DCM:MeOH=99:1) affording (S)-4-(2-(2-(6-(N-(tert-butoxycarbonyl)methylsulfonamido)-2-oxobenzo[d]oxazol-3(2H)-yl)acetoxy)-2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)ethyl)-3,5-dichloropyridine 1-oxide (0.200 g, 0.254 mmol, 50% yield). MS/ESI+ 787.8 [MH]+.

Workup

  1. washwashed with 1N HCl, 1N NaHCO3 and brine
  2. dry with materialThe organic phase was dried over sodium sulfate
  3. customthe solvent was removed
  4. customThe crude was purified by flash chromatography on silica gel cartridge (DCM:MeOH=99:1)

Sources & evidence

ORD record
ord-e5c6ee78149f497f8a29381fad1003f9
Source dataset
uspto-grants-2015_05
Patent number
US09024027B2

Reaction notes

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