1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride → tert-Butyl (2S)-2-{5-[1-(4-fluorophenyl)-2-(imidazol-1-yl)ethoxy]-2-(4-fluorophenethyl)benzoylamino}-4-methylsulfonylbutyrate

HRID 1251889Notes

Reaction equation

HRID 1251889 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([O:15][C:16]2[CH:17]=[CH:18][C:19]([CH2:25][CH2:26][C:27]3[CH:32]=[CH:31][C:30]([F:33])=[CH:29][CH:28]=3)=[C:20]([CH:24]=2)[C:21](O)=[O:22])[CH2:9][N:10]2[CH:14]=[CH:13][N:12]=[CH:11]2)=[CH:4][CH:3]=1.[NH2:34][C@@H:35]([CH2:43][CH2:44][S:45]([CH3:48])(=[O:47])=[O:46])[C:36]([O:38][C:39]([CH3:42])([CH3:41])[CH3:40])=[O:37].CCN=C=NCCCN(C)C.Cl>CN(C1C=CN=CC=1)C>[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([O:15][C:16]2[CH:17]=[CH:18][C:19]([CH2:25][CH2:26][C:27]3[CH:28]=[CH:29][C:30]([F:33])=[CH:31][CH:32]=3)=[C:20]([CH:24]=2)[C:21]([NH:34][C@@H:35]([CH2:43][CH2:44][S:45]([CH3:48])(=[O:47])=[O:46])[C:36]([O:38][C:39]([CH3:41])([CH3:42])[CH3:40])=[O:37])=[O:22])[CH2:9][N:10]2[CH:14]=[CH:13][N:12]=[CH:11]2)=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 183244905-(1-(4-Fluorophenyl)-2-(imidazol-1-yl)ethoxy)-2-(4-fluorophenethyl)benzoic acidHCID 86585138Tert-butyl (2S)-2-amino-4-methanesulfonylbutanoate

Product 1

HCID 57318515tert-Butyl (2S)-2-{5-[1-(4-fluorophenyl)-2-(imidazol-1-yl)ethoxy]-2-(4-fluorophenethyl)benzoylamino}-4-methylsulfonylbutyrateYield 74.4%

Reagents, catalysts & solvents 1

HCID 142844-(Dimethylamino)pyridineCatalyst

Procedure

A mixture of 5-[(1-(4-fluorophenyl)-2-(imidazol-1-yl)ethoxy)]-2-(4-fluorophenethyl)benzoic acid (800 mg, 1.79 mmol), tert-butyl (2S)-2-amino-4-(methylsulfonyl)butanoate (L-methionine sulphone tert-butyl ester) (630 mg, 2.68 mmol), and DMAP (870 mg, 7.1 mmol), was treated with EDC.HCl (510 mg, 2.7 mmol) was stirred at ambient temperature for 16 hours. The reaction mixture was washed with aqueous citirc acid (1M, 2×), brine, dried (MgSO4) and evaporated to dryness. The residue was purified by chromatography on silica (40 gm Dynamax column, gradient elution 2-10% methanol/dichloromethane) to give a gum which, when triturated with diethyl ether/iso-hexane, gave the title compound as a cream solid (889 mg, 74%).

Workup

  1. washThe reaction mixture was washed with aqueous citirc acid (1M, 2×), brine
  2. dry with materialdried (MgSO4)
  3. customevaporated to dryness
  4. customThe residue was purified by chromatography on silica (40 gm Dynamax column, gradient elution 2-10% methanol/dichloromethane)
  5. customto give a gum which, when
  6. customtriturated with diethyl ether/iso-hexane

Sources & evidence

ORD record
ord-6b6d27f5a05445b18b4205d9cfbcbc1a
Source dataset
uspto-grants-2002_01
Patent number
US06342765B1

Reaction notes

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