C[O:2][C:3](=[O:18])[C:4](=O)[C:5]1[CH:6]=[C:7]2[C:11](=[CH:12][CH:13]=1)[CH2:10][C:9]([CH2:15][CH3:16])([CH3:14])[CH2:8]2.C1([NH3+])CCCCC1>>[CH2:15]([C:9]1([CH3:14])[CH2:8][C:7]2[C:11](=[CH:12][CH:13]=[C:5]([CH2:4][C:3]([OH:18])=[O:2])[CH:6]=2)[CH2:10]1)[CH3:16]2-ethyl-α-oxo-2-methyl-5-indanacetic acid methyl ester is reduced in a manner analogous to that described in Example 4. The cyclohexyl ammonium salt of the title compound has an M.P. of 149°-151°. The sodium salt of the title compound has an M.P. of 184°-188°.
Loading…