Acetyl chloride → HCID 59716924, compound

HRID 2224292Notes

Reaction equation

HRID 2224292 reaction equation
[F:1][C:2]([F:36])([F:35])[C:3]1[CH:34]=[CH:33][C:6]([CH2:7][N:8]2[C:31](=[O:32])[N:11]3[NH:12][CH:13]([CH3:30])[C:14]([C:23]4[CH:28]=[CH:27][C:26]([Cl:29])=[CH:25][CH:24]=4)=[C:15]([C:16]4[CH:21]=[CH:20][C:19]([Cl:22])=[CH:18][CH:17]=4)[C:10]3=[N:9]2)=[CH:5][CH:4]=1.C(N(C(C)C)CC)(C)C.[C:46](Cl)(=[O:48])[CH3:47]>C(Cl)Cl>[F:36][C:2]([F:35])([F:1])[C:3]1[CH:4]=[CH:5][C:6]([CH2:7][N:8]2[C:31](=[O:32])[N:11]3[N:12]([C:46](=[O:48])[CH3:47])[CH:13]([CH3:30])[C:14]([C:23]4[CH:28]=[CH:27][C:26]([Cl:29])=[CH:25][CH:24]=4)=[C:15]([C:16]4[CH:17]=[CH:18][C:19]([Cl:22])=[CH:20][CH:21]=4)[C:10]3=[N:9]2)=[CH:33][CH:34]=1

Participants

5

Reactant 3

HCID 6367Acetyl chlorideHCID 81531DiisopropylethylamineHCID 59716562HCID 59716562, compound

Product 1

HCID 59716924HCID 59716924, compoundYield 70%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 2-(4-(trifluoromethyl)benzyl)-7,8-bis(4-chlorophenyl)-6-methyl-5,6-dihydro-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one (8 mg, 0.015 mmol), prepared as described in Example 469 in CH2Cl2 (0.2 mL) at RT was added diisopropyl ethyl amine (5.8 mg, 0.045 mmol), followed by acetyl chloride (2.4 mg, 0.030 mmol). The reaction was stirred at RT for 2 h. LC-MS showed the completion of the reaction. The solvent was evaporated and the residue was purified using reverse phase HPLC to give the title compound, 2-(4-(Trifluoromethyl)benzyl)-5-acetyl-7,8-bis(4-chlorophenyl)-6-methyl-5,6-dihydro-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one, (6 mg, 70%) as a white solid. HPLC retention time: 4.23 min; MS [M+H]+: found 573. 1H NMR (CDCl3, 400 MHz) δ 7.65 (d, 2H), 7.51 (d, 2H), 7.30-7.22 (m, 4H), 7.17 (dd, 2H), 7.06 (dd, 2H), 5.70 (q, 1H), 5.14-5.11 (m, 2H), 2.28 (s, 3H), 1.28 (s, 3H).

Workup

  1. customthe completion of the reaction
  2. customThe solvent was evaporated
  3. customthe residue was purified

Sources & evidence

ORD record
ord-000289a43a57460f9aac54a14ab0281a
Source dataset
uspto-grants-2008_05
Patent number
US07378418B2

Reaction notes

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