Methyl 4-[({[trans-4-(2,4-dichlorophenyl)-5-nitrocyclohex-1-en-1-yl]methyl}amino)carbonyl]benzoate → 4-[({[trans-5-Amino-4-(2,4-dichlorophenyl)cyclohex-1-en-1-yl]methyl}amino)carbonyl]benzoic acid

HRID 1172336Notes

Reaction equation

HRID 1172336 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[C@H:9]1[C@H:14]([N+:15]([O-])=O)[CH2:13][C:12]([CH2:18][NH:19][C:20]([C:22]2[CH:31]=[CH:30][C:25]([C:26]([O:28]C)=[O:27])=[CH:24][CH:23]=2)=[O:21])=[CH:11][CH2:10]1>[Zn].CO.C(O)(=O)C>[NH2:15][C@@H:14]1[CH2:13][C:12]([CH2:18][NH:19][C:20]([C:22]2[CH:31]=[CH:30][C:25]([C:26]([OH:28])=[O:27])=[CH:24][CH:23]=2)=[O:21])=[CH:11][CH2:10][C@H:9]1[C:3]1[CH:4]=[CH:5][C:6]([Cl:8])=[CH:7][C:2]=1[Cl:1]

Participants

4

Reactant 1

HCID 68770735Methyl 4-[({[trans-4-(2,4-dichlorophenyl)-5-nitrocyclohex-1-en-1-yl]methyl}amino)carbonyl]benzoate

Product 1

HCID 687733094-[({[trans-5-Amino-4-(2,4-dichlorophenyl)cyclohex-1-en-1-yl]methyl}amino)carbonyl]benzoic acidYield 32%

Reagents, catalysts & solvents 2

HCID 23994ZincCatalystHCID 10129899Acetic acid methanolSolvent

Procedure

To a solution of Example 15A (35 mg, 0.076 mmol) in mixture of methanol/acetic acid (0.5 mL/0.5 mL), Zn powder (49 mg, 0.76 mmol) was added at room temperature. The reaction mixture was stirred for 30 minutes, filtered, concentrated under reduced pressure and purified by high pressure liquid chromotography (eluting with 0-70% acetonitrile/water and 0.1% trifluoroacetic acid) to provide the title compound (10 mg, 32%). 1H NMR (300 MHz, methanol-d4) δ ppm 8.06-8.16 (m, 2H), 7.88-7.97 (m, 2H), 7.52-7.59 (m, 1H), 7.37-7.49 (m, 2H), 7.10-7.24 (m, 1H), 5.78-5.87 (m, 1H), 3.97-4.06 (m, 2H), 3.83-3.95 (m, 1H), 3.49-3.62 (m, 1H), 2.25-2.61 (m, 4H). MS (ESI) m/z 419 (M+H)+.

Workup

  1. additionwas added at room temperature
  2. filtrationfiltered
  3. concentrationconcentrated under reduced pressure
  4. custompurified by high pressure liquid chromotography (eluting with 0-70% acetonitrile/water and 0.1% trifluoroacetic acid)

Sources & evidence

ORD record
ord-747e6034c6a0429caf7c5b872cc9bddf
Source dataset
uspto-grants-2010_11
Patent number
US07834012B2

Reaction notes

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