| 摘要 |
1. An aromatic derivative having the formula (I) or the salt thereof: <CHEM> wherein R<1> and R<2> independently represent a hydrogen atom, hydroxyl, a halogen atom, or OR<3> wherein R<3> is C1-C10 alkyl; A-B represents a hydrocarbon moiety having 1 to 10 carbon atoms and containing at least one double bond or a sulfur- or oxygen-containing hydrocarbon moiety having 1 to 10 carbon atoms; n is an integer of 2 to 4; X represents a group - @-O, -O-, -O-@-, or -@-NH-; and Y represents a hydrogen atom; alkyl having 1 to 5 carbon atomswhich may be substituted with aryl; alkenyl having 2 to 5 carbon atoms which may be substituted with aryl or aryl substituted with at least one C1-C5 alkoxy; aryl which may be substituted with at least one carboxy or C1-C5 alkoxycarbonyl or C1-C5 alkoxy; provided that, when R<1> and R<2> are both hydrogen, the moiety -A-B-(CH2)n-X-Y does not represent -CH=CH @@@@@(CH2)n-COOR<4> wherein n = 2 to 4 and R<4> is hydrogen or C1-C5 alkyl. b |
