Benzenesulfonyl chloride → N-(2-{1-[2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetyl]-piperidin-4-yl}-thiazol-4-yl)-benzenesulfonamide

HRID 1042054Notes

Reaction equation

[NH2:1][C:2]1[N:3]=[C:4]([CH:7]2[CH2:12][CH2:11][N:10]([C:13](=[O:25])[CH2:14][N:15]3[C:19]([CH3:20])=[CH:18][C:17]([C:21]([F:24])([F:23])[F:22])=[N:16]3)[CH2:9][CH2:8]2)[S:5][CH:6]=1.C(N(C(C)C)CC)(C)C.[C:35]1([S:41](Cl)(=[O:43])=[O:42])[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1>CC(N(C)C)=O>[CH3:20][C:19]1[N:15]([CH2:14][C:13]([N:10]2[CH2:11][CH2:12][CH:7]([C:4]3[S:5][CH:6]=[C:2]([NH:1][S:41]([C:35]4[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=4)(=[O:43])=[O:42])[N:3]=3)[CH2:8][CH2:9]2)=[O:25])[N:16]=[C:17]([C:21]([F:24])([F:23])[F:22])[CH:18]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of 1-[4-(4-amino-thiazol-2-yl)-piperidin-1-yl]-2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-ethanone (100 mg, 0.04 mmol) in dimethylacetamide (0.8 mL) is added diisopropylethylamine (8.6 μL, 0.28 mmol), followed by benzenesulfonyl chloride (8.8 mg, 0.05 mmol) at RT. After stirring 15 min at 60° C., the reaction mixture is purified directly by preparative HPLC to give N-(2-{1-[2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetyl]-piperidin-4-yl}-thiazol-4-yl)-benzenesulfonamide (Compound No. I.g.025). MS: m/z=514 (M+1).

Workup

customthe reaction mixture is purified directly by preparative HPLC

Sources & evidence

ORD record: ord-861e949e663f47128e33e6c4f226a86f
Source dataset: uspto-grants-2013_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08557821B2

Reaction notes

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