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(11)

EP 1 115 718 A1

(12)

(43) Date of publication: 18.07.2001 Bulletin 2001/29 (21) Application number: 99944814.5 (22) Date of filing: 24.09.1999

(51) International Patent Classification (IPC)7: C07D 311/30, A61K 31/35, C07D 407/04, C07D 409/04, C07D 405/04, C07D 413/04, C07D 417/04 (86) International application number: PCT/JP9905/223 (87) International publication number: WO 0017/184 (30.03.2000 Gazette 2000/13)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 24.09.1998 JP 27026298 (71) Applicant: MITSUBISHI CHEMICAL CORPORATION Chiyoda-ku,Tokyo 100-0005 (JP)

(72) Inventors: SHODA, AyaMitsubishi Chemical Corporation Aoba-kuYokohama-shiKanagawa 227-8502 (JP) WATANABE, KazutoshiMitsubishi Chem. Corporation Aoba-kuYokohama-shiKanagawa 227-8502 (JP) ARITOMO, KeiichiMitsubishi Chemical Corporation Aoba-kuYokohama-shiKanagawa 227-8502 (JP) JIKIHARA, TetsuoMitsubishi Chemical Corporation Aoba-kuYokohama-shiKanagawa 227-8502 (JP) ANDO, RyoichiMitsubishi Chemical Corporation Aoba-kuYokohama-shiKanagawa 227-8502 (JP) SAITO, Ken-ichiMitsubishi Chemical Corporation Aoba-kuYokohama-shiKanagawa 227-8502 (JP) HONDA, ToshiyukiMitsubishi Chemical Corporation Aoba-kuYokohama-shiKanagawa 227-8502 (JP) KAWAMOTO, RieMitsubishi Chemical Corporation Aoba-kuYokohama-shiKanagawa 227-8502 (JP) (74) Representative: Sternagel, Fleischer, Godemeyer & PartnerPatentanwälte  An den Gärten 7 51491 Overath 51491 Overath (DE)