A medicine which can decrease an LDL level in blood and comprises, as an active ingredient, a compound represented by general formula (I) (wherein R1 represents a hydrogen atom or a group represented by formula (II) (wherein R3 represents a hydrogen atom, a C1-6 alkyl group or the like； and W1 to W5 independently represent any one of CR4 to CR8 (wherein R4 to R8 independently represent a hydrogen atom, a halogen atom, a C1-6 alkyl group or the like), wherein zero to two of W1 to W5 may be individually substituted by a nitrogen atom)； and R2 represents a C1-6 alkoxy group, a (C1-6 alkylthio)-(C1-6 alkoxy) group, a (C1-6 alkylsulfinyl)-(C1-6 alkoxy) group or the like).本發明係關於降低血中LDL之醫藥，其為含有作為有效成分的一般式(I)(R1為氫原子或以下式(II)(R3表示氫原子、C1-6烷基等，W1~W5表示CR4~CR8(R4~R8為氫原子、鹵素原子、C1-6烷基等)，但這些中之0~2個可取代為氮原子)，R2為C1-6烷氧基、C1-6烷基硫C1-6烷氧基、C1-6烷基亞硫醯基C1-6烷氧基等)所示化合物的醫藥。
