Methanesulfonamide → HCID 22117182, compound
Reaction equation
[CH3:1][C:2]1[CH:34]=[CH:33][C:5]2[CH:6]([C:16]3[C:17](=[S:32])[NH:18][C:19](=[O:31])[N:20]([CH2:22][C:23]4[O:24][CH:25]=[C:26]([C:28](O)=[O:29])[N:27]=4)[CH:21]=3)[C:7]3[CH:14]=[CH:13][C:12]([CH3:15])=[CH:11][C:8]=3[CH:9]=[CH:10][C:4]=2[CH:3]=1.F[P-](F)(F)(F)(F)F.Br[P+](N1CCCC1)(N1CCCC1)N1CCCC1.[CH3:59][S:60]([NH2:63])(=[O:62])=[O:61].C(N(CC)C(C)C)(C)C>CN(C)C1C=CN=CC=1.CN(C)C=O>[CH3:15][C:12]1[CH:13]=[CH:14][C:7]2[CH:6]([C:16]3[C:17](=[S:32])[NH:18][C:19](=[O:31])[N:20]([CH2:22][C:23]4[O:24][CH:25]=[C:26]([C:28]([NH:63][S:60]([CH3:59])(=[O:62])=[O:61])=[O:29])[N:27]=4)[CH:21]=3)[C:5]3[CH:4]=[CH:3][C:2]([CH3:1])=[CH:34][C:33]=3[CH:10]=[CH:9][C:8]=2[CH:11]=1Participants
7
Procedure
The product of example 37(0.2 g), bromo-tris(pyrrolidino)-phosphonium hexafluorophosphate (0.38 g), 4-dimethylaminopyridine (0.07 g), methanesulphonamide (0.095 g) and N,N-diisopropylethylamine (0.43 ml) in N,N-dimethylformamide (2 ml) was stirred at room temperature for 16 h. The mixture was partitioned between aqueous tartaric acid and ethyl acetate. The organic solution was dried (MgSO4) and evaporated. Purification was by reverse phase silica gel chromatography (C18-sep-pak) eluting with 50% methanol in 0.1% aqueous ammonium acetate. Yield 0.032 g.
Workup
- customThe mixture was partitioned between aqueous tartaric acid and ethyl acetate
- dry with materialThe organic solution was dried (MgSO4)
- customevaporated
- customPurification
- washeluting with 50% methanol in 0.1% aqueous ammonium acetate
Sources & evidence
- ORD record
- ord-234ce32e4e324122876ab9a89f798431
- Source dataset
- uspto-grants-2000_12
- Patent number
- US06162808
Reaction notes
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