4-Nitrobenzoic Acid → 3-{(4-Methyl-cyclohexanecarbonyl)-[4-(4-nitro-benzoyloxy)-cyclohexyl]-amino}-5-phenyl-thiophene-2-carboxylic acid methyl ester

HRID 749359Notes

Reaction equation

HRID 749359 reaction equation
[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]([C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)=[CH:8][C:9]=1[N:10]([CH:20]1[CH2:25][CH2:24][CH:23]([OH:26])[CH2:22][CH2:21]1)[C:11]([CH:13]1[CH2:18][CH2:17][CH:16]([CH3:19])[CH2:15][CH2:14]1)=[O:12])=[O:4].[N+:33]([C:36]1[CH:44]=[CH:43][C:39]([C:40](O)=[O:41])=[CH:38][CH:37]=1)([O-:35])=[O:34].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>C1C=CC=CC=1>[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]([C:27]2[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=2)=[CH:8][C:9]=1[N:10]([C:11]([CH:13]1[CH2:18][CH2:17][CH:16]([CH3:19])[CH2:15][CH2:14]1)=[O:12])[CH:20]1[CH2:25][CH2:24][CH:23]([O:26][C:40](=[O:41])[C:39]2[CH:38]=[CH:37][C:36]([N+:33]([O-:35])=[O:34])=[CH:44][CH:43]=2)[CH2:22][CH2:21]1)=[O:4]

Participants

6

Reactant 4

HCID 61084-Nitrobenzoic AcidHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 597523083-[(4-Hydroxy-cyclohexyl)-(4-methyl-cyclohexanecarbonyl)-amino]-5-phenyl-thiophene-2-carboxylic acid methyl ester

Product 1

HCID 597523093-{(4-Methyl-cyclohexanecarbonyl)-[4-(4-nitro-benzoyloxy)-cyclohexyl]-amino}-5-phenyl-thiophene-2-carboxylic acid methyl esterYield 54%

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

3-[(4-Hydroxy-cyclohexyl)-(4-methyl-cyclohexanecarbonyl)-amino]-5-phenyl-thiophene-2-carboxylic acid methyl ester (62 mg, 0.136 mmol) was dissolved in benzene (0.7 ml) and then p-nitrobenzoic acid (27 mg, 0.163 mmol) and triphenylphosphine (43 mg, 0.163 mmol) were added. The resulting solution was cooled in an ice bath and diethyl azodicarboxylate (26 ul, 0.163 mmol) was added. After stirring at room temperature for 22 hours, the solvents were removed and the residue was purified by preparative chromatography (30% EtOAc/Hexane) to obtain 44 mg (54%) of 3-{(4-Methyl-cyclohexanecarbonyl)-[4-(4-nitro-benzoyloxy)-cyclohexyl]-amino}-5-phenyl-thiophene-2-carboxylic acid methyl ester.

Workup

  1. temperatureThe resulting solution was cooled in an ice bath
  2. customthe solvents were removed
  3. customthe residue was purified by preparative chromatography (30% EtOAc/Hexane)

Sources & evidence

ORD record
ord-35b8e6c672534af2a218b2d5231eb0f2
Source dataset
uspto-grants-2008_07
Patent number
US07402608B2

Reaction notes

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