Diisopropylethylamine → (S)-tert-butyl 3-(6-(2-chloropyridin-4-yloxy)benzo[d]thiazol-2-ylamino)piperidine-1-carboxylate

HRID 1988444

Reaction equation

[Cl:1][C:2]1[CH:7]=[C:6]([O:8][C:9]2[CH:20]=[CH:19][C:12]3[N:13]=[C:14](S(C)=O)[S:15][C:11]=3[CH:10]=2)[CH:5]=[CH:4][N:3]=1.[NH2:21][C@H:22]1[CH2:27][CH2:26][CH2:25][N:24]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:23]1.CCN(C(C)C)C(C)C>CN1C(=O)CCC1>[Cl:1][C:2]1[CH:7]=[C:6]([O:8][C:9]2[CH:20]=[CH:19][C:12]3[N:13]=[C:14]([NH:21][C@H:22]4[CH2:27][CH2:26][CH2:25][N:24]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:23]4)[S:15][C:11]=3[CH:10]=2)[CH:5]=[CH:4][N:3]=1

Participants

Conditions

Temperature: 95 °C

Procedure

To the solution of 6-(2-chloropyridin-4-yloxy)-2-(methylsulfinyl)benzo[d]thiazole (100 mg, 0.31 mmol) in 1.6 ml of NMP was added (S)-tert-butyl 3-aminopiperidine-1-carboxylate (200 mg, 1 mmol) and DIPEA (70 μL, 0.4 mmol). The reaction solution was stirred at 95° C. for 5 days. The crude reaction solution was purified on prep HPLC and evaporated in vacuo to give (S)-tert-butyl 3-(6-(2-chloropyridin-4-yloxy)benzo[d]thiazol-2-ylamino)piperidine-1-carboxylate (160 mg) as TFA salt. ES/MS m/z 461.1 (MH+).

Workup

customThe crude reaction solution
customwas purified on prep HPLC
customevaporated in vacuo

Sources & evidence

ORD record: ord-c9a00b36e54a47298717433a41c43fe7
Source dataset: uspto-grants-2009_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07553854B2

Linked notes

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