Dicyclohexylcarbodiimide → HCID 68602979, compound

HRID 1848660Notes

Reaction equation

HRID 1848660 reaction equation
[Br:1][C:2]1[C:7]([Cl:8])=[CH:6][C:5]([CH2:9][C:10]([OH:12])=[O:11])=[C:4]([C:13](=[O:24])[N:14]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=2[O:22][CH3:23])[CH3:15])[CH:3]=1.[CH3:25][Si:26]([CH3:31])([CH3:30])[CH2:27][CH2:28]O.C1CCC(N=C=NC2CCCCC2)CC1>CN(C1C=CN=CC=1)C.C(Cl)Cl>[CH3:25][Si:26]([CH3:31])([CH3:30])[CH2:27][CH2:28][O:11][C:10](=[O:12])[CH2:9][C:5]1[CH:6]=[C:7]([Cl:8])[C:2]([Br:1])=[CH:3][C:4]=1[C:13](=[O:24])[N:14]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=1[O:22][CH3:23])[CH3:15]

Participants

6

Reactant 3

HCID 10868DicyclohexylcarbodiimideHCID 180132-(Trimethylsilyl)ethanolHCID 68602961HCID 68602961, compound

Product 1

HCID 68602979HCID 68602979, compoundYield 101.4%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of DCM (10 mL) containing 2-{4-bromo-5-chloro-2-[(2-methoxy-phenyl)-methyl-carbamoyl]-phenyl}-acetic acid (427 mg, 1.0 mmol) and 2-trimethylsilylethanol (183 mg, 1.5 mmol), were added DMAP (18.9 mg, 0.15 mmol) and DCC (320 mg, 1.5 mmol). The mixture was stirred at rt for 24 hrs, concentrated, and then directly purified via silica gel column chromatography eluting with ethyl acetate in hexane (20%) to yield {4-bromo-5-chloro-2-[(2-methoxy-phenyl)-methyl-carbamoyl]-phenyl}-acetic acid 2-trimethylsilanyl-ethyl ester (520 mg). MS: (M-CH2CH2)+ 487.9/486.0; tR=3.34 min (method 1).

Workup

  1. concentrationconcentrated
  2. customdirectly purified via silica gel column chromatography
  3. washeluting with ethyl acetate in hexane (20%)

Sources & evidence

ORD record
ord-f86e75146609478794ab8a00fa6e570e
Source dataset
uspto-grants-2015_02
Patent number
US08952161B2

Reaction notes

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