Oxalyl chloride → Methyl 4-(2-{4-[({2-[(3-{[1-(ethoxycarbonyl)cyclopropyl](isopropyl)sulfamoyl}benzoyl)amino]-4,5,6,7-tetrahydro-1-benzothiophen-3-yl}carbonyl)amino]phenyl}ethyl)benzoate

HRID 1025455Notes

Reaction equation

HRID 1025455 reaction equation
[CH2:1]([O:3][C:4]([C:6]1([N:9]([CH:22]([CH3:24])[CH3:23])[S:10]([C:13]2[CH:14]=[C:15]([CH:19]=[CH:20][CH:21]=2)[C:16](O)=[O:17])(=[O:12])=[O:11])[CH2:8][CH2:7]1)=[O:5])[CH3:2].C(Cl)(=O)C(Cl)=O.[NH2:31][C:32]1[S:33][C:34]2[CH2:61][CH2:60][CH2:59][CH2:58][C:35]=2[C:36]=1[C:37]([NH:39][C:40]1[CH:45]=[CH:44][C:43]([CH2:46][CH2:47][C:48]2[CH:57]=[CH:56][C:51]([C:52]([O:54][CH3:55])=[O:53])=[CH:50][CH:49]=2)=[CH:42][CH:41]=1)=[O:38]>CN(C=O)C.C(Cl)Cl.N1C=CC=CC=1>[CH2:1]([O:3][C:4]([C:6]1([N:9]([CH:22]([CH3:23])[CH3:24])[S:10]([C:13]2[CH:14]=[C:15]([CH:19]=[CH:20][CH:21]=2)[C:16]([NH:31][C:32]2[S:33][C:34]3[CH2:61][CH2:60][CH2:59][CH2:58][C:35]=3[C:36]=2[C:37]([NH:39][C:40]2[CH:41]=[CH:42][C:43]([CH2:46][CH2:47][C:48]3[CH:49]=[CH:50][C:51]([C:52]([O:54][CH3:55])=[O:53])=[CH:56][CH:57]=3)=[CH:44][CH:45]=2)=[O:38])=[O:17])(=[O:12])=[O:11])[CH2:8][CH2:7]1)=[O:5])[CH3:2]

Participants

7

Reactant 3

HCID 65578Oxalyl chlorideHCID 682078783-{[1-(Ethoxycarbonyl)cyclopropyl](isopropyl)sulfamoyl}benzoic acidHCID 68207883Methyl 4-[2-(4-{[(2-amino-4,5,6,7-tetrahydro-1-benzothiophen-3-yl)carbonyl]amino}phenyl)ethyl]benzoate

Product 1

HCID 71238705Methyl 4-(2-{4-[({2-[(3-{[1-(ethoxycarbonyl)cyclopropyl](isopropyl)sulfamoyl}benzoyl)amino]-4,5,6,7-tetrahydro-1-benzothiophen-3-yl}carbonyl)amino]phenyl}ethyl)benzoateYield 62.8%

Reagents, catalysts & solvents 3

HCID 6228DimethylformamideCatalystHCID 1049PyridineSolventHCID 6344DichloromethaneSolvent2×

Procedure

A mixture of 307 mg of 3-{[1-(ethoxycarbonyl)cyclopropyl](isopropyl)sulfamoyl}benzoic acid, 0.10 mL of oxalyl chloride, 2.5 mL of dichloromethane, and one drop of DMF was stirred at room temperature for 2 hours, and then the reaction mixture was concentrated under reduced pressure. A mixture of the obtained crude product and 2.5 mL of dichloromethane was added to a mixture of 0.050 mL of pyridine, 250 mg of methyl 4-[2-(4-{[(2-amino-4,5,6,7-tetrahydro-1-benzothiophen-3-yl)carbonyl]amino}phenyl)ethyl]benzoate, and 2.5 mL of methylene chloride, followed by stirring at room temperature overnight. The reaction mixture was purified by silica gel column chromatography (hexane-chloroform) to obtain 279 mg of methyl 4-(2-{4-[({2-[(3-{[1-(ethoxycarbonyl)cyclopropyl](isopropyl)sulfamoyl}benzoyl)amino]-4,5,6,7-tetrahydro-1-benzothiophen-3-yl}carbonyl)amino]phenyl}ethyl)benzoate as a yellow foamed solid.

Workup

  1. concentrationthe reaction mixture was concentrated under reduced pressure
  2. additionA mixture of the
  3. customobtained crude product and 2.5 mL of dichloromethane
  4. stirringby stirring at room temperature overnight
  5. customThe reaction mixture was purified by silica gel column chromatography (hexane-chloroform)

Sources & evidence

ORD record
ord-0bfc38991d564e3dad5f327a57a1b70b
Source dataset
uspto-grants-2014_05
Patent number
US08729068B2

Reaction notes

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