Hydrochloric Acid → 2-{(4-Chloro-benzyl)-[2-(7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1lambda6-benzo[1,2,4]thiadiazin-3-yl)-acetyl]-amino}-cyclopentanecarboxylic acid ethyl ester
Reaction equation
[CH3:1][S:2]([NH:5][C:6]1[CH:21]=[CH:20][C:9]2[NH:10][C:11]([CH2:16][C:17]([OH:19])=O)=[N:12][S:13](=[O:15])(=[O:14])[C:8]=2[CH:7]=1)(=[O:4])=[O:3].[CH2:22]([O:24][C:25]([CH:27]1[CH2:31][CH2:30][CH2:29][CH:28]1[NH:32][CH2:33][C:34]1[CH:39]=[CH:38][C:37]([Cl:40])=[CH:36][CH:35]=1)=[O:26])[CH3:23].Cl.CN(C)CCCN=C=NCC.CN1CCOCC1.Cl>CN(C)C=O>[CH2:22]([O:24][C:25]([CH:27]1[CH2:31][CH2:30][CH2:29][CH:28]1[N:32]([CH2:33][C:34]1[CH:35]=[CH:36][C:37]([Cl:40])=[CH:38][CH:39]=1)[C:17](=[O:19])[CH2:16][C:11]1[NH:10][C:9]2[CH:20]=[CH:21][C:6]([NH:5][S:2]([CH3:1])(=[O:3])=[O:4])=[CH:7][C:8]=2[S:13](=[O:14])(=[O:15])[N:12]=1)=[O:26])[CH3:23]Participants
Reactant 5
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 25 °C
Procedure
(7-Methanesulfonylamino-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)-acetic acid (prepared as described in Example 1j, 0.1665 g, 0.5 mmol) was dissolved in anhydrous N,N-dimethylformamide (3 mL). 2-(4-Chloro-benzylamino)-cyclopentanecarboxylic acid ethyl ester (0.1406 g, 0.5 mmol) was added followed by 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.1003 g, 0.525 mmol). Then N-methylmorpholine (115 μL, 1.05 mmol) was added. The mixture was stirred at 25° C. for 5 h. The solution was poured into 1.0 M aqueous hydrochloric acid solution (100 mL). The aqueous layer was extracted with ethyl acetate (2×100 mL). The organic layer was dried over sodium sulfate and concentrated in vacuo to afford the crude product, 2-{(4-chloro-benzyl)-[2-(7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)-acetyl]-amino}-cyclopentanecarboxylic acid ethyl ester, as a yellow oil. LC-MS (ESI) calcd for C25H29ClN4O7S2 596.12, found 597.2 [M+H+].
Workup
- extractionThe aqueous layer was extracted with ethyl acetate (2×100 mL)
- dry with materialThe organic layer was dried over sodium sulfate
- concentrationconcentrated in vacuo
Sources & evidence
- ORD record
- ord-930f7dd24b834dfcb2d6792a6afef4ce
- Source dataset
- uspto-grants-2009_09
- Patent number
- US07582626B2
Reaction notes
Loading…