Patent number: 5945450
Abstract: Naphthalene derivatives represented by formula ?I!: ##STR1## (wherein A is a hydrogen atom, a hydroxy group, a C.sub.7 -C.sub.11 aralkyloxy group, or an alkoxy group composed of an oxy group and a C.sub.1 -C.sub.12 aliphatic or alicyclic, saturated or unsaturated hydrocarbon group where the allyl may be substituted with a C.sub.6 -C.sub.10 allyloxy group; Q represents O, S, CH.sub.2, O--CH.sub.2, S--CH.sub.2, CO, or CHOR.sup.1 ; L represents CO, CR.sup.2 R.sup.3 CO, CH.sub.2 CH.sub.2 CO, or CH.dbd.CHCO; D represents a hydrogen atom, NO.sub.2, NH.sub.2, CO.sub.2 R.sup.4, or a group having the following formula ?II!: ##STR2## (wherein G represents. a hydrogen atom, OH, SO.sub.2 NH.sub.2, CO.sub.2 R.sup.6, CN, or a tetrazol-5-yl group); E represents a hydrogen atom, OH, SO.sub.2 NH.sub.2, CO.sub.2 R.sup.5, CN, or a tetrazol-5-yl group; M represents a hydrogen atom, a C.sub.1 -C.sub.4 lower alkyl group, a nitro group, or a halogen atom; and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.
Type:
Grant
Filed:
November 22, 1996
Date of Patent:
August 31, 1999
Assignee:
Teijin Limited
Inventors:
Kazuya Takenouchi, Katsushi Takahashi, Masaichi Hasegawa, Takahiro Takeuchi, Keiji Komoriya