Cesium carbonate → 4-(2-(4-(Benzo[d]thiazol-2-ylamino)phenoxy)pyridin-3-yl)-1-methylpiperidin-2-one

HRID 410261Notes

Reaction equation

F[C:2]1[C:7]([CH:8]2[CH2:13][CH2:12][N:11]([CH3:14])[C:10](=[O:15])[CH2:9]2)=[CH:6][CH:5]=[CH:4][N:3]=1.[S:16]1[C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][C:19]=2[N:18]=[C:17]1[NH:25][C:26]1[CH:31]=[CH:30][C:29]([OH:32])=[CH:28][CH:27]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN1CCCC1=O>[S:16]1[C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][C:19]=2[N:18]=[C:17]1[NH:25][C:26]1[CH:31]=[CH:30][C:29]([O:32][C:2]2[C:7]([CH:8]3[CH2:13][CH2:12][N:11]([CH3:14])[C:10](=[O:15])[CH2:9]3)=[CH:6][CH:5]=[CH:4][N:3]=2)=[CH:28][CH:27]=1

Participants

Conditions

Temperature: 120 °C

Procedure

Into a sealed tube were added 4-(2-fluoropyridin-3-yl)-1-methylpiperidin-2-one (0.06 g, 0.288 mmol), 4-(benzo[d]thiazol-2-ylamino)phenol (0.223 g, 0.922 mmol), cesium carbonate (0.310 g, 0.951 mmol), and 1-methyl-2-pyrrolidinone (1 mL). After degassing for 5 min, the reaction was heated at 120° C. for 14 h. The cooled mixture was diluted with EtOAc and washed with water; the aqueous layer was back-washed with EtOAc (1×). The combined organic extracts were washed with aqueous 1N NaOH solution, dried (MgSO4), filtered, and concentrated in vacuo. Flash column chromatography (20% to 100% EtOAc/Hexanes) afforded 4-(2-(4-(benzo[d]thiazol-2-ylamino)phenoxy)pyridin-3-yl)-1-methylpiperidin-2-one (0.046 g, 37.1% yield) as a tan amorphous solid. MS (ESI, pos. ion) m/z: 431.9 (M+1). IC50 (uM) +++++.

Workup

customAfter degassing for 5 min
additionThe cooled mixture was diluted with EtOAc
washwashed with water
washthe aqueous layer was back-washed with EtOAc (1×)
washThe combined organic extracts were washed with aqueous 1N NaOH solution
dry with materialdried (MgSO4)
filtrationfiltered
concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-6f0c468dbe664b7dad182b51fba826ae
Source dataset: uspto-grants-2014_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08759532B2

Reaction notes

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