Water → HCID 16731819, compound

HRID 370102Notes

Reaction equation

[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9](=[O:30])[C:10]2[CH:15]=[C:14]([Cl:16])[CH:13]=[C:12]([O:17][CH3:18])[C:11]=2[NH:19][C:20]([C:22]2[S:23][CH:24]=[C:25]([CH2:28]Cl)[C:26]=2[Cl:27])=[O:21])=[CH:4][CH:3]=1.[CH3:31][N:32]1[CH2:37][CH2:36][NH:35][CH2:34][CH2:33]1.O>CN(C=O)C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9](=[O:30])[C:10]2[CH:15]=[C:14]([Cl:16])[CH:13]=[C:12]([O:17][CH3:18])[C:11]=2[NH:19][C:20]([C:22]2[S:23][CH:24]=[C:25]([CH2:28][N:35]3[CH2:36][CH2:37][N:32]([CH3:31])[CH2:33][CH2:34]3)[C:26]=2[Cl:27])=[O:21])=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of N-(4-chlorophenyl)-2-[((4-(chloromethyl)-3-chlorothiophen-2-yl)carbonyl)amino]-3-methoxy-5-chlorobenzamide (1.0 g, 2.1 mmol) in DMF (40 mL) at 0° C. was added 1-methylpiperazine (1.2 mL, 1.1 g, 11 mmol), and the mixture stirred for 0.5 hours at 0° C., then warmed to ambient temperature. After 7 hours the reaction mixture was poured into water (150 mL) and the resulting solid collected by filtration, washed with water (50 mL) and acetonitrile (10 mL). Purification by flash chromatography on silica gel afforded 0.77 g (64% yield) of N-(4-chlorophenyl)-2-[((4-((4-methylpiperazin-1-yl)methyl)-3-chlorothiophen-2-yl)carbonyl)amino]-3-methoxy-5-chlorobenzamide, as a white foam: NMR (DMSO-d6 /TFA) 10.4 (s, 1), 9.4 (s, 1), 7.2-8.1 (m, 7), 4.4 (s, 2), 3.8 (s, 3), 3.0-3.8 (br m, 8), 2.8 (s, 3) ppm.

Workup

temperaturewarmed to ambient temperature
filtrationthe resulting solid collected by filtration
washwashed with water (50 mL) and acetonitrile (10 mL)
customPurification by flash chromatography on silica gel

Sources & evidence

ORD record: ord-ac43f6374ed243b9b102da9fb244a6c8
Source dataset: uspto-grants-2000_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06140351

Reaction notes

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