5-Chloro-o-anisic acid → 5-chloro-N-(5-chlorothiazol-2-yl)-2-methoxybenzamide

HRID 78497

Reaction equation

HRID 78497 reaction equation
Cl.[NH2:2][C:3]1[S:4][C:5]([Cl:8])=[CH:6][N:7]=1.[Cl:9][C:10]1[CH:11]=[CH:12][C:13]([O:19][CH3:20])=[C:14]([CH:18]=1)[C:15](O)=[O:16].Cl.C(N=C=NCCCN(C)C)C>CN(C)C1C=CN=CC=1.N1C=CC=CC=1>[Cl:9][C:10]1[CH:11]=[CH:12][C:13]([O:19][CH3:20])=[C:14]([CH:18]=1)[C:15]([NH:2][C:3]1[S:4][C:5]([Cl:8])=[CH:6][N:7]=1)=[O:16]

Participants

6

Reactant 3

HCID 769705-Chloro-o-anisic acidHCID 1487432-Amino-5-chlorothiazole hydrochlorideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride

Product 1

HCID 866189125-chloro-N-(5-chlorothiazol-2-yl)-2-methoxybenzamide

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 1049PyridineSolvent

Procedure

A mixture of 2-amino-5-chlorothiazole hydrochloric acid (1.0 g, 5.9 mmol), 5-chloro-2-methoxybenzoic acid (1.3 g, 7.0 mmol), 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride (Chem-Impex International, 2.2 g, 12 mmol), 1-hydroxbenzotriazole (0.95 g, 7.0 mmol) and 4-dimethylaminopyridine (0.14 g, 1.2 mmol) in 6 mL of pyridine was allowed to stir at ambient temperature for 72 hours. The reaction mixture was concentrated under reduced pressure and 10 mL of H2O was added. The resulting solids were isolated by filtration, washed with 5 mL of H2O and twice with 5 mL of ethyl acetate, and dried to afford the title compound. MS (DCI/NH3) m/z 303 (M+H)+.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure and 10 mL of H2O
  2. additionwas added
  3. customThe resulting solids were isolated by filtration
  4. washwashed with 5 mL of H2O and twice with 5 mL of ethyl acetate
  5. customdried

Sources & evidence

ORD record
ord-16f7c185f4ca43919749ba8193650962
Source dataset
uspto-grants-2014_09
Patent number
US08841334B2

Linked notes

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