2-Chloro-5-fluorobenzoyl chloride → 6-[4-(2-CHLORO-5-FLUOROBENZOYL)PIPERAZIN-1-YL]PYRIDAZINE-3-CARBOXYLIC Acid (2-CYCLOPROPYLETHYL)AMIDE

HRID 2056448Notes

Reaction equation

HRID 2056448 reaction equation
[Cl:1][C:2]1[CH:10]=[CH:9][C:8]([F:11])=[CH:7][C:3]=1[C:4](Cl)=[O:5].[CH:12]1([CH2:15][CH2:16][NH:17][C:18]([C:20]2[N:21]=[N:22][C:23]([N:26]3[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]3)=[CH:24][CH:25]=2)=[O:19])[CH2:14][CH2:13]1>>[CH:12]1([CH2:15][CH2:16][NH:17][C:18]([C:20]2[N:21]=[N:22][C:23]([N:26]3[CH2:31][CH2:30][N:29]([C:4](=[O:5])[C:3]4[CH:7]=[C:8]([F:11])[CH:9]=[CH:10][C:2]=4[Cl:1])[CH2:28][CH2:27]3)=[CH:24][CH:25]=2)=[O:19])[CH2:14][CH2:13]1

Participants

3

Reactant 2

HCID 27575402-Chloro-5-fluorobenzoyl chlorideHCID 66849327N-(2-cyclopropylethyl)-6-(1-piperazinyl)-3-pyridazinecarboxamide

Product 1

HCID 114532506-[4-(2-CHLORO-5-FLUOROBENZOYL)PIPERAZIN-1-YL]PYRIDAZINE-3-CARBOXYLIC Acid (2-CYCLOPROPYLETHYL)AMIDE

Procedure

Following the procedure of Example 3, making variations only as required to use 2-chloro-5-fluorobenzoyl chloride in place of isoxazole-5-carbonyl chloride to react with 6-piperazin-1-yl-pyridazine-3-carboxylic acid (2-cyclopropylethyl)amide, the title compound was obtained as a white solid (94% yield). m.p. 194-196° C. 1H NMR (300 MHz, CDCl3) δ 8.05, 7.96, 7.41-7.37, 7.11-7.03, 7.00, 4.07-3.34, 1.55-1.46, 0.79-0.68, 0.48-0.42, 0.11-0.06. 13C NMR (75 MHz, CDCl3) δ 165.7, 163.0, 160.0, 159.7, 145.5, 136.7, 131.5, 127.1, 125.3, 117.8, 115.2, 112.5, 46.0, 44.8, 44.6, 41.2, 39.6, 34.5, 8.6, 4.2. MS (ES+) m/z 432.2 (M+1).

Sources & evidence

ORD record
ord-121cf807313243a5b5b0f7b676373359
Source dataset
uspto-grants-2008_02
Patent number
US07335658B2

Reaction notes

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