2,4-Dichloropyrimidine → 4-(6-Chloro-benzo[b]thiophene-2-sulfonyl)-1-[1-(2-chloro-pyrimidin-4-yl)-piperidin-4-ylmethyl]-piperazin-2-one

HRID 1433091Notes

Reaction equation

[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[CH:9]=[C:8]([S:10]([N:13]3[CH2:18][CH2:17][N:16]([CH2:19][CH:20]4[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]4)[C:15](=[O:26])[CH2:14]3)(=[O:12])=[O:11])[S:7][C:6]=2[CH:27]=1.[Cl:28][C:29]1[N:34]=[C:33](Cl)[CH:32]=[CH:31][N:30]=1.C(N(C(C)C)CC)(C)C>C(O)CCC>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[CH:9]=[C:8]([S:10]([N:13]3[CH2:18][CH2:17][N:16]([CH2:19][CH:20]4[CH2:21][CH2:22][N:23]([C:31]5[CH:32]=[CH:33][N:34]=[C:29]([Cl:28])[N:30]=5)[CH2:24][CH2:25]4)[C:15](=[O:26])[CH2:14]3)(=[O:12])=[O:11])[S:7][C:6]=2[CH:27]=1

Participants

Conditions

Temperature: 110 °C

Procedure

To a solution of 4-(6-chloro-benzo[b]thiophene-2-sulfonyl)-1-piperidin-4-ylmethyl-piperazin-2-one (40 mg, 0.094 mmole) in n-butanol (1.0 mL) is added 2,4-dichloropyrimidine (14, 0.094 mmole) and diisopropylethylamine (0.016 mL, 0.094 mmole) and this mixture is heated at 110° C. for 4 hours. The reaction is concentrated and purified by column chromatography (silica, 25% ethyl acetate/dichloromethane) to yield 4-(6-chloro-benzo[b]thiophene-2-sulfonyl)-1-[1-(2-chloro-pyrimidin-4-yl)-piperidin-4-ylmethyl]-piperazin-2-one. 1H NMR (300 MHz, CDCl3) d 8.01 (d, 1H), 7.89-7.87 (m, 3H), 7.48 (dd, 1H), 6.35 (d, 1H), 4.41-4.20 (m, 2H), 3.87 (s, 2H), 3.48 (s, 4H), 3.28 (dd, 2H), 2.05-1.95 (m, 1H), 1.67 (d, 2H), 1.31-1.20 (m, 2H); MS (Ion spray) 542 (M+H)+.

Workup

concentrationThe reaction is concentrated
custompurified by column chromatography (silica, 25% ethyl acetate/dichloromethane)

Sources & evidence

ORD record: ord-bccf6f704faf430094c1d316191374db
Source dataset: uspto-grants-2009_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07612075B2

Reaction notes

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