Diisopropylethylamine → 3-(1,3-Dioxolan-2-yl)propyl 1-(4-((3-((S)-phenyl((((R)-quinuclidin-3-yloxy)-carbonyl)amino)methyl)phenoxy)methyl)benzoyl)piperidine-4-carboxylate
Reaction equation
[C:1]1([C@H:7]([NH:25][C:26]([O:28][C@@H:29]2[CH:34]3[CH2:35][CH2:36][N:31]([CH2:32][CH2:33]3)[CH2:30]2)=[O:27])[C:8]2[CH:9]=[C:10]([CH:22]=[CH:23][CH:24]=2)[O:11][CH2:12][C:13]2[CH:21]=[CH:20][C:16]([C:17](O)=[O:18])=[CH:15][CH:14]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(N(C(C)C)CC)(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.Cl.[NH:71]1[CH2:76][CH2:75][CH:74]([C:77]([O:79][CH2:80][CH2:81][CH2:82][CH:83]2[O:87][CH2:86][CH2:85][O:84]2)=[O:78])[CH2:73][CH2:72]1>CN(C=O)C.C(OCC)(=O)C>[C:1]1([C@H:7]([NH:25][C:26]([O:28][C@@H:29]2[CH:34]3[CH2:35][CH2:36][N:31]([CH2:32][CH2:33]3)[CH2:30]2)=[O:27])[C:8]2[CH:9]=[C:10]([CH:22]=[CH:23][CH:24]=2)[O:11][CH2:12][C:13]2[CH:14]=[CH:15][C:16]([C:17]([N:71]3[CH2:76][CH2:75][CH:74]([C:77]([O:79][CH2:80][CH2:81][CH2:82][CH:83]4[O:84][CH2:85][CH2:86][O:87]4)=[O:78])[CH2:73][CH2:72]3)=[O:18])=[CH:20][CH:21]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Procedure
To a stirred solution of 4-((3-((S)-phenyl((((R)-quinuclidin-3-yloxy)carbonyl)amino)methyl)phenoxy)methyl)benzoic acid (0.300 g, 0.57 mmol) in DMF (2.5 mL) was added di-iso-propylethylamine (0.40 mL, 2.29 mmol) and HATU (0.262 g, 0.69 mmol) and the mixture stirred at RT for 30 minutes. To the resultant solution was added a solution of 3-(1,3-dioxolan-2-yl)propyl piperidine-4-carboxylate hydrochloride (0.241 g, 0.86 mmol) in DMF (1.8 mL). The mixture was stirred at RT for 18 hours. The mixture was diluted with ethyl acetate, washed with 10% aqueous potassium carbonate, brine (×2), dried (magnesium sulfate), filtered and the solvent evaporated at reduced pressure. The residue was used directly in the next step with no further purification.
Workup
- stirringThe mixture was stirred at RT for 18 hours
- washwashed with 10% aqueous potassium carbonate, brine (×2)
- dry with materialdried (magnesium sulfate)
- filtrationfiltered
- customthe solvent evaporated at reduced pressure
- customThe residue was used directly in the next step with no further purification
Sources & evidence
- ORD record
- ord-8b8aa91656ed4a8494a2e8c2ab8a2e68
- Source dataset
- uspto-grants-2015_03
- Patent number
- US08980913B2
Reaction notes
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