Triethylamine → [(Z)-[3-[[2-(4-fluorophenyl)-2-hydroxyethyl]-methylsulfamoyl]-5,6-dihydro-4H-1-benzothiophen-7-ylidene]amino] 2,2-dimethylpropanoate

HRID 1351332Notes

Reaction equation

HRID 1351332 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([OH:26])[CH2:9][N:10]([CH3:25])[S:11]([C:14]2[C:15]3[CH2:22][CH2:21][CH2:20]/[C:19](=[N:23]/[OH:24])/[C:16]=3[S:17][CH:18]=2)(=[O:13])=[O:12])=[CH:4][CH:3]=1.C(N(CC)CC)C.[C:34](Cl)(=[O:39])[C:35]([CH3:38])([CH3:37])[CH3:36]>ClCCl>[CH3:36][C:35]([CH3:38])([CH3:37])[C:34]([O:24]/[N:23]=[C:19]1/[CH2:20][CH2:21][CH2:22][C:15]2[C:14]([S:11]([N:10]([CH2:9][CH:8]([C:5]3[CH:6]=[CH:7][C:2]([F:1])=[CH:3][CH:4]=3)[OH:26])[CH3:25])(=[O:13])=[O:12])=[CH:18][S:17][C:16]/1=2)=[O:39]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 62493Pivaloyl chlorideHCID 11350049(7e)-7-Hydroxyimino-4,5,6,7-tetrahydro-benzo[b]thiophene-3-sulfonic acid[2-(4-fluorophenyl)-2-hydroxyethyl]-methyl-amide

Product 1

HCID 87823690[(Z)-[3-[[2-(4-fluorophenyl)-2-hydroxyethyl]-methylsulfamoyl]-5,6-dihydro-4H-1-benzothiophen-7-ylidene]amino] 2,2-dimethylpropanoateYield 96.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of the compound (30 mg) of Example 1 and triethylamine (18 μL) in dichloromethane (10 mL) was added dropwise pivaloyl chloride (13 mg) in dichloromethane (1 mL) on an ice bath. After stirring for 30 minutes, the solvent was removed at reduced pressure, the residue was purified by silica gel column chromatography (hexane/ethyl acetate), and the title compound (35 mg) was obtained as a colorless amorphous substance.

Workup

  1. customthe solvent was removed at reduced pressure
  2. customthe residue was purified by silica gel column chromatography (hexane/ethyl acetate)

Sources & evidence

ORD record
ord-645033c200034f4d9c00cf43301fae51
Source dataset
uspto-grants-2007_05
Patent number
US07217723B2

Reaction notes

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