| 摘要 |
PCT No. PCT/JP96/00091 Sec. 371 Date Oct. 8, 1997 Sec. 102(e) Date Oct. 8, 1997 PCT Filed Jan. 22, 1996 PCT Pub. No. WO96/22973 PCT Pub. Date Aug. 1, 1996A compound represented by general formula (I):thyl group and R3 represents an alkoxy group having (1) to (7) carbon atoms which may be substituted by one or more substituents selected from a hydroxyl group, a halogen atom, a cyano group, an alkoxy group having (1) to (4) carbon atoms, an amino group and an acylamino group with the proviso that R1 and R2 are not a methyl group simultaneously, is disclosed. The compound according to the present invention is useful as a pharmaceutical.
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