Tetrahydrofuran → 4-{4-Methoxy-2-[(2-morpholin-4-yl-pyridine-4-carbonyl)-amino]-benzothiazol-7-yl}-piperidine-1-carboxylic acid tert-butyl ester
Reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH:12]=[C:11]([C:14]2[C:22]3[S:21][C:20]([NH:23][C:24]([C:26]4[CH:31]=[CH:30][N:29]=[C:28]([N:32]5[CH2:37][CH2:36][O:35][CH2:34][CH2:33]5)[CH:27]=4)=[O:25])=[N:19][C:18]=3[C:17]([O:38][CH3:39])=[CH:16][CH:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C1COCC1>CO.[Pd]>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[C:22]3[S:21][C:20]([NH:23][C:24]([C:26]4[CH:31]=[CH:30][N:29]=[C:28]([N:32]5[CH2:37][CH2:36][O:35][CH2:34][CH2:33]5)[CH:27]=4)=[O:25])=[N:19][C:18]=3[C:17]([O:38][CH3:39])=[CH:16][CH:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
To a solution of 0.15 g (0.27 mMol) of 4-{4-methoxy-2-[(2-morpholin-4-yl-pyridine-4-carbonyl)-amino]-benzothiazol-7-yl}-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester in 6.0 ml of methanol and 6.0 ml THF 50 mg of Pd/C (10%) were added. The reaction mixture was hydrogenated at 60° C. for 6 h, then filtered and evaporated to dryness in vacuo. The residue was subjected to column chromatography (ethyl acetate) to yield 0.083 g (55%) 4-{4-methoxy-2-[(2-morpholin-4-yl-pyridine-4-carbonyl)-amino]-benzothiazol-7-yl}-piperidine-1-carboxylic acid tert-butyl ester as a yellow foam. ES-MS m/e (%): 554 ([M+H]+, 100).
Workup
- filtrationfiltered
- customevaporated to dryness in vacuo
Sources & evidence
- ORD record
- ord-01f1cf69339d4d65a506eb33ef54dfc2
- Source dataset
- uspto-grants-2004_05
- Patent number
- US06734179B2
Reaction notes
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