Hydrochloric Acid → 4-[3-[3-methoxy-4-[N'-(2-methylphenyl)ureido]phenylacetyl-N-methylamino]-1-propyl]benzoic acid

HRID 354486

Reaction equation

HRID 354486 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH2:20][C:21]([N:23]([CH2:25][CH2:26][CH2:27][C:28]2[CH:38]=[CH:37][C:31]([C:32]([O:34]CC)=[O:33])=[CH:30][CH:29]=2)[CH3:24])=[O:22])[CH:6]=[CH:7][C:8]=1[NH:9][C:10]([NH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[CH3:19])=[O:11].[OH-].[Na+].Cl>C1COCC1.C[C@H]1O[C@H]2[C@H](O)[C@@H](O)[C@H](OC3C4C(=CC5OCOC=5C=4)[C@@H](C4C=C(OC)C(O)=C(OC)C=4)[C@@H]4[C@@H]3COC4=O)O[C@@H]2CO1.C1COP(NCCCl)(=O)N(CCCl)C1.[NH2-].[NH2-].Cl[Pt+2]Cl>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH2:20][C:21]([N:23]([CH2:25][CH2:26][CH2:27][C:28]2[CH:29]=[CH:30][C:31]([C:32]([OH:34])=[O:33])=[CH:37][CH:38]=2)[CH3:24])=[O:22])[CH:6]=[CH:7][C:8]=1[NH:9][C:10]([NH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[CH3:19])=[O:11]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 23512235HCID 23512235, compound

Product 1

HCID 235123274-[3-[3-methoxy-4-[N'-(2-methylphenyl)ureido]phenylacetyl-N-methylamino]-1-propyl]benzoic acidYield 28%

Reagents, catalysts & solvents 2

HCID 56841950ICE protocol 1CatalystHCID 8028TetrahydrofuranSolvent

Procedure

To a stirred solution of ethyl 4-[3-[3-methoxy-4-[N′-(2-methylphenyl)ureido]phenylacetyl-N-methylamino]-1-propyl]benzoate (500 mg, 0.966 mmol) in THF (8 mL) was added 0.25 N NaOH (8 mL), and the mixture was heated under reflux overnight. The resulting solution was poured into ice-1 N HCl (100 mL) and the solid was collected with suction. The solid was dissolved in CHCl3 (100 mL) and dried over MgSO4. After removal of the solvent, the residue was chromatographed on silica gel with CHCl3—MeOH (10:1 to 5:1, v/v) to give 131 mg (28%) 4-[3-[3-methoxy-4-[N′-(2-methylphenyl)ureido]phenylacetyl-N-methylamino]-1-propyl]benzoic acid 269 as a pale yellow amorphous solid. 1H-NMR (DMSO-d6) δ1.68-1.80 (m, 2 H), 2.24 (s, 3 H), 2.57 (m, 2 H), 2.81 and 2.97 (s, each, total 3 H), 3.33 (m, 2 H), 3.57-3.61 (m, 2 H), 3.84 (s, 3 H), 6.71 (dd, J=29.8, 8.3 Hz, 1 H), 6.87 (d, J=11.2 Hz, 1 H), 6.93 (t, J=7.3 Hz, 1 H), 7.15 (m, 2 H), 7.28 (m, 2 H), 7.79 (d, J=8.3 Hz, 1 H), 7.84-7.87 (m, 2 H), 8.02 (d, J=8.3 Hz, 1 H), 8.49 (d, J=7.3 Hz, 1 H), 8.58 (d, J=4.9 Hz, 1 H); MS (FAB) m/z 490 (M+1+1); Anal. Calcd. for C28H31N3O5.1/2H2O: C, 67.45; H, 6.47; N, 8.43. Found: C, 67.27; H, 6.51; N, 8.02.

Workup

  1. temperaturethe mixture was heated
  2. temperatureunder reflux overnight
  3. customthe solid was collected with suction
  4. dissolutionThe solid was dissolved in CHCl3 (100 mL)
  5. dry with materialdried over MgSO4
  6. customAfter removal of the solvent
  7. customthe residue was chromatographed on silica gel with CHCl3—MeOH (10:1 to 5:1

Sources & evidence

ORD record
ord-de514b66d6364c93af01f2c78d0fe875
Source dataset
uspto-grants-2004_06
Patent number
US06756378B2

Linked notes

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