[C:1]([NH:4][CH:5]1[CH2:13][C:12]2[C:7](=[CH:8][CH:9]=[CH:10][C:11]=2[OH:14])[C:6]1=[O:15])(=[O:3])[CH3:2].[H-].[Na+].[CH3:18][S:19][CH2:20]Cl.O>CN(P(N(C)C)(N(C)C)=O)C>[C:1]([NH:4][CH:5]1[CH2:13][C:12]2[C:7](=[CH:8][CH:9]=[CH:10][C:11]=2[O:14][CH2:18][S:19][CH3:20])[C:6]1=[O:15])(=[O:3])[CH3:2]To 2-acetylamino-4-hydroxy-1-indanone 10.25 g (0.05 m) in 50 ml of dry HMPA under N2 is added 2.6 g (0.055 m) of a 50% oil dispersion of sodium hydride in portions. After stirring at room temperature for 1/2 hr, 5.3 g (0.055 m) of chloromethyl methyl sulfide is added, and the mixture is stirred overnight. Water is added and the mixture is extracted with ethyl acetate which is back-washed with water. After drying (Na2SO4) and concentration, the desired product is obtained.
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