2,6-Dichlorobenzoyl chloride → HCID 69335842, compound

HRID 844878Notes

Reaction equation

HRID 844878 reaction equation
[CH3:1][O:2][C:3](=[O:24])[C@H:4]([CH2:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]2[C:14](=[O:22])[N:15]([CH3:21])[C:16](=[O:20])[N:17]([CH3:19])[CH:18]=2)=[C:9]([CH3:23])[CH:8]=1)[NH2:5].[Cl:25][C:26]1[CH:34]=[CH:33][CH:32]=[C:31]([Cl:35])[C:27]=1[C:28](Cl)=[O:29].C(N(C(C)C)CC)(C)C>ClCCl>[CH3:1][O:2][C:3](=[O:24])[C@H:4]([CH2:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]2[C:14](=[O:22])[N:15]([CH3:21])[C:16](=[O:20])[N:17]([CH3:19])[CH:18]=2)=[C:9]([CH3:23])[CH:8]=1)[NH:5][C:28]([C:27]1[C:26]([Cl:25])=[CH:34][CH:33]=[CH:32][C:31]=1[Cl:35])=[O:29]

Participants

5

Reactant 3

HCID 783922,6-Dichlorobenzoyl chlorideHCID 81531DiisopropylethylamineHCID 69336446HCID 69336446, compound

Product 1

HCID 69335842HCID 69335842, compoundYield 81%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a suspension of 4-(1,3-dimethyl-2,4-dioxo-5-pyrimidinyl)-3-methyl-L-phenylalanine methyl ester (0.128 mmol, 47 mg) and 2,6-dichlorobenzoyl chloride (0.153 mmol, 32 mg) in dichloromethane (1 mL) was added diisopropylethylamine (0.45 mmol, 77 uL) at room temperature. After 5 min, everything went into solution and the clear yellow solution was stirred for 15 h at room temperature. The resulting brown solution was diluted with dichloromethane (25 mL). The dichloromethane layer was washed successively with 1N hydrochloric acid (2×25 mL), saturated sodium bicarbonate solution (25 mL), and brine solution (25 mL) and was dried over anhydrous magnesium sulfate. Filtration of the drying agent and concentration gave the crude product which was purified by silica gel chromatography using a Biotage (40m) column to afford 52 mg (81% yield) of N-[(2,6-dichlorophenyl)carbonyl]-4-(1,3-dimethyl-2,4-dioxo-5-pyrimidinyl)-3-methyl-L-phenylalanine methyl ester as an amorphous white solid. ES-HRMS m/e calcd for C24H23Cl2N3O5 (M+Na) 526.0907, found 526.0912.

Workup

  1. washThe dichloromethane layer was washed successively with 1N hydrochloric acid (2×25 mL), saturated sodium bicarbonate solution (25 mL), and brine solution (25 mL)
  2. dry with materialwas dried over anhydrous magnesium sulfate
  3. filtrationFiltration of the drying agent and concentration
  4. customgave the crude product which
  5. customwas purified by silica gel chromatography

Sources & evidence

ORD record
ord-7362aef9a1dc47c69766fd4d8a055585
Source dataset
uspto-grants-2002_04
Patent number
US06380387B1

Reaction notes

Loading…