p-Toluenesulfonic acid monohydrate → HCID 70020197, compound
Reaction equation
O.C1(C)C=CC(S(O)(=O)=O)=CC=1.[C:13]([O:21][C@H:22]1[C@@H:27]2[O:28]C(C)(C)[O:30][C@@H:26]2[CH:25]=[C:24]([C:33]([O:35][CH3:36])=[O:34])[CH2:23]1)(=[O:20])[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>CO>[C:13]([O:21][C@H:22]1[C@H:27]([OH:28])[C@H:26]([OH:30])[CH:25]=[C:24]([C:33]([O:35][CH3:36])=[O:34])[CH2:23]1)(=[O:20])[C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Para-toluenesulfonic acid monohydrate (100 mg, 0.526 mmol) was added to a room temperature solution of Example 13D in methanol (50 mL). After stirring overnight, the reaction mixture was concentrated and the concentrate was purified by flash chromatography using ethyl acetate to afford 0.90 g (54%) of the desired product as a colorless oil.