Water → 3-chloro-N-{4-chloro-2-[(5-chloropyridin-2-yl)carbamoyl]-6-methoxyphenyl}-4-(4,5-dihydro-1H-imidazol-1-ylmethyl)thiophene-2-carboxamide

HRID 370117Notes

Reaction equation

HRID 370117 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][C:9](=[O:30])[C:10]2[CH:15]=[C:14]([Cl:16])[CH:13]=[C:12]([O:17][CH3:18])[C:11]=2[NH:19][C:20]([C:22]2[S:23][CH:24]=[C:25]([CH2:28]Cl)[C:26]=2[Cl:27])=[O:21])=[N:6][CH:7]=1.[CH2:31]([NH2:34])[CH2:32][NH2:33].O.[CH:36](OCC)(OCC)OCC>CN(C=O)C.C(O)(=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][C:9](=[O:30])[C:10]2[CH:15]=[C:14]([Cl:16])[CH:13]=[C:12]([O:17][CH3:18])[C:11]=2[NH:19][C:20]([C:22]2[S:23][CH:24]=[C:25]([CH2:28][N:33]3[CH2:32][CH2:31][N:34]=[CH:36]3)[C:26]=2[Cl:27])=[O:21])=[N:6][CH:7]=1

Participants

7

Reactant 4

HCID 962Water2×HCID 3301EthylenediamineHCID 31214Ethyl orthoformateHCID 16731661N-(5-chloropyridin-2-yl)-2-[((4-(chloromethyl)-3-chlorothiophen-2-yl)carbonyl)amino]-3-methoxy-5-chlorobenzamide

Product 1

HCID 167330063-chloro-N-{4-chloro-2-[(5-chloropyridin-2-yl)carbamoyl]-6-methoxyphenyl}-4-(4,5-dihydro-1H-imidazol-1-ylmethyl)thiophene-2-carboxamideYield 53.8%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 6228DimethylformamideSolvent

Procedure

To N-(5-chloropyridin-2-yl)-2-[((4-(chloromethyl)-3-chlorothiophen-2-yl)carbonyl)amino]-3-methoxy-5-chlorobenzamide (1.5 g, 3.0 mmol) in DMF (15 mL), was added ethylene diamine (0.09 g, 15 mmol) at ambient temperature. After 2 hours, the reaction was poured into water and extracted with ethyl acetate. The ethyl acetate solution was dried (NaSO4) and concentrated in vacuo to afford the crude amine adduct. To the adduct was added triethyl orthoformate (1.33 g, 9 mmol) in acetic acid (20 mL). After stirring at ambient temperature for 1 hour, the reaction was poured into water and extracted with ethyl acetate. The ethyl acetate layer was dried (NaSO4), concentrated in vacuo, and purified by HPLC on a C18 Dynamax column with acetonitrile in water gradient with 0.1 % trifluoroacetic acid to afford 0.87 g of N-(5-chloropyridin-2-yl)-2-[((4-((imidazolin-1-yl)methyl)-3-chlorothiophen-2-yl)carbonyl)amino]-3-methoxy-5-chlorobenzamide (870 mg), trifluoroacetic acid salt; NMR (DMSO-d6 /TFA) 10.9 (s, 1), 10.3 (s., 1 ), 9.4 (s, 1), 8.6 (d, 2), 8.3 (d, 1), 8.1 (d, 1), 7.8 (dd, 1), 7.3 (d, 1), 7.2 (d, 1), 4.6 (s, 2), 3.7~3.9 (m, 7) ppm.

Workup

  1. extractionextracted with ethyl acetate
  2. dry with materialThe ethyl acetate solution was dried (NaSO4)
  3. concentrationconcentrated in vacuo
  4. customto afford the crude amine adduct
  5. extractionextracted with ethyl acetate
  6. dry with materialThe ethyl acetate layer was dried (NaSO4)
  7. concentrationconcentrated in vacuo
  8. custompurified by HPLC on a C18 Dynamax column with acetonitrile in water gradient with 0.1 % trifluoroacetic acid

Sources & evidence

ORD record
ord-e4f4eca42c86403c9ccd81e35a13b4f6
Source dataset
uspto-grants-2000_10
Patent number
US06140351

Reaction notes

Loading…