Water → N-(6-{6-[2-(2,4-dichloro-phenyl)-ethylamino]-2-methoxy-pyrimidin-4-yl}-benzothiazol-2-yl)-acetamide

HRID 2110790Notes

Reaction equation

Cl[C:2]1[N:7]=[C:6]([O:8][CH3:9])[N:5]=[C:4]([C:10]2[CH:22]=[CH:21][C:13]3[N:14]=[C:15]([NH:17][C:18](=[O:20])[CH3:19])[S:16][C:12]=3[CH:11]=2)[CH:3]=1.[Cl:23][C:24]1[CH:29]=[C:28]([Cl:30])[CH:27]=[CH:26][C:25]=1[CH2:31][CH2:32][NH2:33].C([O-])([O-])=O.[K+].[K+].O>CN1CCCC1=O>[Cl:23][C:24]1[CH:29]=[C:28]([Cl:30])[CH:27]=[CH:26][C:25]=1[CH2:31][CH2:32][NH:33][C:2]1[N:7]=[C:6]([O:8][CH3:9])[N:5]=[C:4]([C:10]2[CH:22]=[CH:21][C:13]3[N:14]=[C:15]([NH:17][C:18](=[O:20])[CH3:19])[S:16][C:12]=3[CH:11]=2)[CH:3]=1

Participants

Conditions

Temperature: 140 °C

Procedure

A mixture of N-[6-(6-chloro-2-methoxy-pyrimidin-4-yl)-benzothiazol-2-yl]-acetamide (160 mg, 0.48 mmol), 2-(2,4-dichloro-phenyl)-ethylamine (362 μL, 2.4 mmol), and K2CO3 (359 mg, 2.6 mmol) in N-methylpyrrolidinone (2.6 mL) is heated to 140° C. Water (20 mL) is added after 1 hour of heating and extracted with EtOAc (20 mL). The organic extracts are combined and dried over magnesium sulfate, filtered and evaporated. This residue is subjected to chromatography on silica gel eluting with 90% ethyl acetate:heptane to afford a solid which is triturated with 1:1 methanol:ethyl acetate. The solid is collected to afford N-(6-{6-[2-(2,4-dichloro-phenyl)-ethylamino]-2-methoxy-pyrimidin-4-yl}-benzothiazol-2-yl)-acetamide [31 mg, 13%, Example 94]. LCMS RT=2.49 minutes, MS: 488 (M+H). IC50=11 nM

Workup

temperatureof heating
extractionextracted with EtOAc (20 mL)
dry with materialdried over magnesium sulfate
filtrationfiltered
customevaporated
customheptane to afford a solid which
customis triturated with 1:1 methanol
customThe solid is collected

Sources & evidence

ORD record: ord-0c4e5cf92ac04472a80b2652a1ad8646
Source dataset: uspto-grants-2009_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07517889B2

Reaction notes

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