4-Methylmorpholine → (4aR,7aS)-1-[(4-fluorophenyl)methyl]-4-hydroxy-3-(7-iodo-1,1-dioxo-4H-1$l^{6},2,4-benzothiadiazin-3-yl)-5,6,7,7a-tetrahydro-4aH-cyclopenta[b]pyridin-2-one
Reaction equation
[F:1][C:2]1[CH:18]=[CH:17][C:5]([CH2:6][NH:7][C@H:8]2[CH2:12][CH2:11][CH2:10][C@H:9]2[C:13]([O:15]C)=O)=[CH:4][CH:3]=1.[I:19][C:20]1[CH:35]=[CH:34][C:23]2[NH:24][C:25]([CH2:30][C:31](O)=[O:32])=[N:26][S:27](=[O:29])(=[O:28])[C:22]=2[CH:21]=1.CN1CCOCC1.Cl.CN(C)CCCN=C=NCC>CN(C)C=O.C(OCC)(=O)C>[F:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:6][N:7]2[C@@H:8]3[C@@H:9]([CH2:10][CH2:11][CH2:12]3)[C:13]([OH:15])=[C:30]([C:25]3[NH:24][C:23]4[CH:34]=[CH:35][C:20]([I:19])=[CH:21][C:22]=4[S:27](=[O:28])(=[O:29])[N:26]=3)[C:31]2=[O:32])=[CH:17][CH:18]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Conditions
- Temperature
- 25 °C
Procedure
To a stirred solution of methyl (1R,2S)-2-(4-fluoro-benzylamino)-cyclopentanecarboxylate (2.50 g, 10 mmol) in anhydrous N,N-dimethylformamide (25 mL) under a nitrogen atmosphere, (7-iodo-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)-acetic acid (prepared as described in Example 24b, 3.66 g, 10 mmol), N-methylmorpholine (2.20 mL, 20 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (1.92 g, 10 mmol) were added sequentially. After stirring at 25° C. for 16 h, the reaction mixture was diluted with ethyl acetate, washed with a 1.0 M aqueous hydrochloric acid solution and saturated aqueous brine solution, dried over sodium sulfate and filtered. The filtrate was concentrated in vacuo to afford the crude amide intermediate.
Workup
- washwashed with a 1.0 M aqueous hydrochloric acid solution and saturated aqueous brine solution
- dry with materialdried over sodium sulfate
- filtrationfiltered
- concentrationThe filtrate was concentrated in vacuo
Sources & evidence
- ORD record
- ord-bb830a6631cf4519b24ca2aa91b30bfe
- Source dataset
- uspto-grants-2009_09
- Patent number
- US07582626B2
Reaction notes
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