6-(benzene sulfonyl amino-methyl)-3-benzyloxy-4-oxo-4H-pyran-2-carboxylic acid → 3-Benzyloxy-4-oxo-6-[(toluene-2-sulfonylamino)-methyl]-4H-pyran-2-carboxylic acid
Reaction equation
[CH2:1]([O:8][C:9]1[C:10](=[O:29])[CH:11]=[C:12]([CH2:17][NH:18][S:19]([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=2[CH3:28])(=[O:21])=[O:20])[O:13][C:14]=1[CH:15]=[O:16])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C1(S(C(N)C2OC(C(O)=O)=C(OCC3C=CC=CC=3)C(=O)C=2)(=O)=[O:37])C=CC=CC=1>>[CH2:1]([O:8][C:9]1[C:10](=[O:29])[CH:11]=[C:12]([CH2:17][NH:18][S:19]([C:22]2[C:23]([CH3:28])=[CH:24][CH:25]=[CH:26][CH:27]=2)(=[O:21])=[O:20])[O:13][C:14]=1[C:15]([OH:37])=[O:16])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Participants
3
Procedure
3-Benzyloxy-4-oxo-6-[(toluene-2-sulfonylamino)-methyl]-4H-pyran-2-carboxylic acid (12-02) (2.0 g, crude) was synthesized as a white solid from N-(5-benzyloxy-6-formyl-4-oxo-4H-pyran-2-ylmethyl)-2-methyl-benzenesulfonamide (11-02) (2.8 g, 6.74 mmol) following the procedure described for 6-(benzenesulfonylamino-methyl)-3-benzyloxy-4-oxo-4H-pyran-2-carboxylic acid (12-01).
Sources & evidence
- ORD record
- ord-e59a5934aa53441490589e5fdc619fd5
- Source dataset
- uspto-grants-2015_02
- Patent number
- US08952039B2
Reaction notes
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