Pyridine → 2-Chloro-N-{4-methyl-5-[2-(3-nitro-phenylamino)-pyrimidin-4-yl]-thiazol-2-yl}-acetamide

HRID 2113959Notes

Reaction equation

HRID 2113959 reaction equation
[NH2:1][C:2]1[S:3][C:4]([C:8]2[CH:13]=[CH:12][N:11]=[C:10]([NH:14][C:15]3[CH:20]=[CH:19][CH:18]=[C:17]([N+:21]([O-:23])=[O:22])[CH:16]=3)[N:9]=2)=[C:5]([CH3:7])[N:6]=1.[Cl:24][CH2:25][C:26](Cl)=[O:27].N1C=CC=CC=1>CN(C=O)C>[Cl:24][CH2:25][C:26]([NH:1][C:2]1[S:3][C:4]([C:8]2[CH:13]=[CH:12][N:11]=[C:10]([NH:14][C:15]3[CH:20]=[CH:19][CH:18]=[C:17]([N+:21]([O-:23])=[O:22])[CH:16]=3)[N:9]=2)=[C:5]([CH3:7])[N:6]=1)=[O:27]

Participants

5

Reactant 3

HCID 1049PyridineHCID 6577Chloroacetyl chlorideHCID 4479614-(2-Amino-4-methyl-5-thiazolyl)-N-(3-nitrophenyl)-2-pyrimidinamine

Product 1

HCID 101793942-Chloro-N-{4-methyl-5-[2-(3-nitro-phenylamino)-pyrimidin-4-yl]-thiazol-2-yl}-acetamide

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of [4-(2-amino-4-methyl-thiazol-5-yl)-pyrimidin-2-yl]-(3-nitro-phenyl)-amine (0.33 g, 1.0 mmol,) in dry DMF (3 mL) was cooled on an ice-water bath. Chloroacetyl chloride (0.22 g, 2.0 mmol) and pyridine (80 μL) were added. After stirring at room temperature for 18 h, the reaction mixture was concentrated, poured into ice water and extracted with CH2Cl2. The organic phases were combined, washed with brine, dried on MgSO4 and evaporated to dryness. The resulting greenish residue was purified by SiO2 chromatography (1:1 EtOAc/PE) to afford the title compound as a gray solid. Anal. RP-HPLC: tR=20.6 min (0-60% MeCN in 0.1% aq CF3COOH over 20 min, 1 mL/min, purity>97%). 1H-NMR (DMSO-d6) δ: 2.45 (s, 3H, CH3), 4.12 (s, 2H, CH2), 7.03 (d, 1H, J=5.2 Hz, pyrimidinyl-H), 7.42 (m, 1H, Ph-H), 7.63 (m, 1H, Ph-H), 8.01 (m, 1H, Ph-H), 8.41 (d, 1H, J=5.2 Hz, pyrimidinyl-H), 8.64 (s, 1H, Ph-H).

Workup

  1. concentrationthe reaction mixture was concentrated
  2. additionpoured into ice water
  3. extractionextracted with CH2Cl2
  4. washwashed with brine
  5. customdried on MgSO4
  6. customevaporated to dryness
  7. customThe resulting greenish residue was purified by SiO2 chromatography (1:1 EtOAc/PE)

Sources & evidence

ORD record
ord-7609101b088e4c8aa2ac6489e8ea5eb5
Source dataset
uspto-grants-2008_10
Patent number
US07432260B2

Reaction notes

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