[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([Cl:12])[C:10]=1[CH3:11])[C:5]([OH:7])=[O:6].[CH3:13]O>>[Cl:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([Cl:12])[C:10]=1[CH3:11])[C:5]([O:7][CH3:13])=[O:6]This compound was prepared in the same manner as in Reference Example 1 (step 1), except that 3,5-dichloro-4-methylbenzoic acid (Japanese Unexamined Patent Publication (Kokai) No. 6-192196) was used and methanol was used as the solvent, and that the crude product was purified by silica gel column chromatography.
Wird geladen…