1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride → HCID 16223128, compound

HRID 1808964Notes

Reaction equation

HRID 1808964 reaction equation
[F:1][C:2]1[C:3]([NH:12][C:13]2[CH:18]=[CH:17][C:16]([I:19])=[CH:15][C:14]=2[F:20])=[C:4]([CH:8]=[CH:9][C:10]=1[F:11])[C:5]([OH:7])=O.Cl.CN(C)CCCN=C=NCC.Cl.[OH:34][C:35]1([C:39]([NH:41][CH2:42][CH:43]=[CH2:44])=[O:40])[CH2:38][NH:37][CH2:36]1>CN(C)C1C=CN=CC=1.CN(C=O)C>[F:1][C:2]1[C:3]([NH:12][C:13]2[CH:18]=[CH:17][C:16]([I:19])=[CH:15][C:14]=2[F:20])=[C:4]([C:5]([N:37]2[CH2:38][C:35]([OH:34])([C:39]([NH:41][CH2:42][CH:43]=[CH2:44])=[O:40])[CH2:36]2)=[O:7])[CH:8]=[CH:9][C:10]=1[F:11]

Participants

6

Reactant 3

HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 220256632-(2-Fluoro-4-iodoanilino)-3,4-difluorobenzoic acidHCID 67051854HCID 67051854, compound

Product 1

HCID 16223128HCID 16223128, compoundYield 9.2%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent2×

Procedure

3,4-Difluoro-2-[(2-fluoro-4-iodophenyl)amino]benzoic acid (1.20 g, 3.05 mmol), prepared using procedures similar to those described in U.S. Pat. No. 7,019,033, 4-(dimethylamino)pyridine (1.20 g, 9.86 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (701 mg, 3.66 mmol) were dissolved in DMF (10 mL). The mixture was stirred at ambient for 5 minutes and then 3-hydroxy-N-prop-2-en-1-ylazetidine-3-carboxamide hydrochloride (3.05 mmol) in DMF (5 mL) was added and the mixture was stirred for 15 h. The mixture was partitioned between ethyl acetate and 5% lithium chloride. The organic portion was washed with 20% citric acid, saturated sodium bicarbonate and brine, then was dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. Column chromatography (silica gel, 60-85% ethyl acetate in hexanes) and then reverse phase HPLC gave 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxy-N-prop-2-en-1-ylazetidine-3-carboxamide (150 mg, 0.282 mmol, 9% yield): 1H NMR (400 MHz, d6-DMSO): 8.64 (br s, 1H), 8.13 (t, 1H), 7.58 (dd, 1H), 7.38 (dd, 1H), 7.34-7.28 (m, 1H), 7.21-7.12 (m, 1H), 6.84 (br s, 1H), 6.72 (ddd, 1H), 5.83-5.72 (m, 1H), 5.10-4.99 (m, 2H), 4.38 (d, 1H), 4.20 (d, 1H), 4.02 (d, 1H), 3.86 (d, 1H), 3.73-3.68 (m, 2H); MS (EI) for C20H17F3IN3O3: 532 (MH+).

Workup

  1. stirringthe mixture was stirred for 15 h
  2. customThe mixture was partitioned between ethyl acetate and 5% lithium chloride
  3. washThe organic portion was washed with 20% citric acid, saturated sodium bicarbonate and brine
  4. dry with materialwas dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-7cef2ffa454849bb8ff56b8f292da1f8
Source dataset
uspto-grants-2013_01
Patent number
US08362002B2

Reaction notes

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