Mechlorethamine → 7-Methyl-5-(4-methyl-piperazin-1-ylmethyl)-2-(4-trifluoromethoxy-benzyl)-2,3-dihydro-isoindol-1-one

HRID 2427720

Reaction equation

[NH2:1][CH2:2][C:3]1[CH:4]=[C:5]2[C:9](=[C:10]([CH3:12])[CH:11]=1)[C:8](=[O:13])[N:7]([CH2:14][C:15]1[CH:20]=[CH:19][C:18]([O:21][C:22]([F:25])([F:24])[F:23])=[CH:17][CH:16]=1)[CH2:6]2.Cl[CH2:27][CH2:28][N:29]([CH2:31][CH2:32]Cl)[CH3:30].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[CH3:12][C:10]1[CH:11]=[C:3]([CH2:2][N:1]2[CH2:32][CH2:31][N:29]([CH3:30])[CH2:28][CH2:27]2)[CH:4]=[C:5]2[C:9]=1[C:8](=[O:13])[N:7]([CH2:14][C:15]1[CH:20]=[CH:19][C:18]([O:21][C:22]([F:25])([F:23])[F:24])=[CH:17][CH:16]=1)[CH2:6]2

Participants

Conditions

Temperature: 110 °C

Procedure

In sealed vial, a mixture of 5-aminomethyl-7-methyl-2-(4-trifluoromethoxy-benzyl)-2,3-dihydro-isoindol-1-one (0.104 g, 0.3 mmol), bis(2-chloro-ethyl)-methyl-amine (0.077 g, 0.4 mmol), and K2CO3 (0.083 g, 0.6 mmol) in DMF (3 mL) was stirred at 110° C. for 16 h. After this time, the GC-MS of the reaction mixture indicated the completion of reaction. The reaction was cooled to ambient temperature and the solids removed by filtration. The filtrate was concentrated. Silica gel column chromatography of the resulting material using 5:1 CHCl3-MeOH afforded 7-methyl-5-(4-methyl-piperazin-1-ylmethyl)-2-(4-trifluoromethoxy-benzyl)-2,3-dihydro-isoindol-1-one (0.040 g, 31%). 1H NMR (300 MHz, CDCl3): δ (ppm) 2.24 (s, 3H), 2.34-2.52 (m, 8H), 2.74 (s, 3H), 3.49 (s, 2H), 4.20 (s, 2H), 4.76 (s, 2H), 7.15-7.37 (m, 6H). GC-MS: m/z 433 (M)+.

Workup

customthe completion of reaction
temperatureThe reaction was cooled to ambient temperature
customthe solids removed by filtration
concentrationThe filtrate was concentrated

Sources & evidence

ORD record: ord-d6fdfeea6ef14a189a92dc3c871e7335
Source dataset: uspto-grants-2011_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07968570B2

Linked notes

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